Unfortunately, just the bare minimum to get the games I want out of the bundles (if there are tiers). Like, the current Humble Bundle I paid $1 because the BTA games didn't interest me. The Build-a-Doujin Groupees bundle I paid the minimum for 4-5 games. And so on and so forth. It's partly because of my current monetary situation, but also I've gotten so use to deep sales/discounts due to Digital Distribution that I just can't get myself to pay much for games anymore unless there's a special (to me) reason to do so.

Mind you, I do tend to buy most bundles that pop up for Groupees and Humble Bundle, with intermittent IndieGala, IndieRoyale, and IndieGameStand purchases; if that makes it any better.

It depends on the games(how much I want them and if they are DRM free or not) involved and my funds of course. Which usually means I don't usually pay much more than average.

It depends on if it's DRM-free or not, cross platform or Windows only, and whether or not I'm interested in the games. I will generally pay around twice as much for cross platform compared to Windows only. The more notable and interesting the games, the more I'll pay.

At most, I've paid maybe three times the average. I'm cheap. I'll admit that.

Another +1 for this. I used to try to keep track of them, but it just got to the point of ridiculousness. Now a days if I don't see a topic here about it I'll likely miss it. Like Indie Royale. I used to buy them all, now several have gone by without me even knowing of them until I checked my bundle list and saw them there.

Bundles always pose a dilemma for me. Sure it's a way to get 7-8 games for a few bucks, but are they games I even want? Usually it's only 1-2 games I've heard of along with a bunch of titles that don't sound the least bit entertaining. And sometimes for the games I have heard of it's because of how horrible it is. So now I'm at the point where I can get one $5-$10 game I really want for much less, but it I also get a bunch of garbage with it. If I cheap out and spend a dollar then the one developer who I'm patronizing literally just get pennies for their hard work. I could pay the full $10 for the one game I want but then each developer ends up getting a few bucks, not just the one I'm interested in. And I'm certainly not paying $60+ for a bunch of games I don't want. Usually I end up looking at a bundle, having an internal debate of how much to spend and then give up and just buy the game I want for full price somewhere else. Come to think of it, I'm not sure I have ever actually purchased a bundle in my life.

Maybe $5 for a bundle I think looks good? When there was only Humble Bundle I would pay maybe $15 or $20. But now there are so blasted many bundles out, and so many games I've never heard of and don't care about (or already own from other bundles), and I admit that I've gotten cheaper since then.

I only buy the humble bundles.

I assess how much I want the games and how much I value them. If it's a game that I don't want but think I might play, I will usually throw a dollar in, if its a game I do want, I will think about how much I can get it for elsewhere and maybe pay anywhere between $2 and $5. If I know I don't want it or I already have it, I usually pay nothing, unless I have it, and it was awesome, and I didn't pay enough for it last time, then I will pay some more to the devs.

I always wait for the extra games to be announced in week 2 so I can distribute the funds how I best see fit. I like to allocate the funds to each individual dev.

I then throw in a couple of dollars for the Humble Bundle people.

Usually that gets me between $10 and $20.

For Indie Royale, I usually pay a bit above the average (~4-5€ I think). I don't pay much because these contains mostly games I don't know except for one game I want. Sometimes the more interesting games are those I already own with a DRM.

I used to pay ~7.5$ for Humble Bundles but lately the only bundles were bundles where I owned most of the games (like the Deep Silver one, or this Origin). As I don't give away the keys of the games I already own (as we shouldn't distribute them), I only pay 5$ (more if it is less than the average)

Other bundles (Groupees, Bundle in a Box...) are less known and contain less interesting games, so I tend to pay only a bit more than the average for those.

I used to plunk down more than average for them back in 2011 when bundles were a new thing, but with less money and just about 0 time for games, I now pay the minimum and put all the games in my ever-ballooning backlog.

I'm $9k in debt, thus, the minimum. I don't buy DRM-infested humble deals at all.
Normally, I'd pay $25, redirecting the "share" of games I'm not interested in (duplicates or just meh) to the EFF.
Even now, I'd go three digits if something awesome was on offer (Anodyne, Spirits).

It is a major issue - endorsing DRM. These bundles are a big deviation from Humble Bundle original spirit. Their popularity came from DRM free cross platform games and now they sell Origin/Steam with their DRM? Not interested even if they'd offer them for free.

I usually pay around average for Linux users. But I only get normal DRM free bundles, not this DRMed stuff they started offering.

I am not stingy but with low income, i can't afford being generous as i wish..

So i usually pay the 1$ and all to charity..

When it coms to BTA i go a little higher in cents to a round number ending with x.x5 or x.x0.

$10 minimum

Depends.. Usually I have little money (I'm a student) so I go with the minimum (1$).. But as soon as I have some more credit and the games in the bundle really interest me, I beat the average without problems.

Their popularity came from offering good games for a cheap price, as evidenced by the 2 highest selling bundles which are the DRM ones. The highest selling DRM-Free cross platform was HIB V with ~600K units sold, while THQ bundle had 885K units.
HIB V did get a tiny bit more money than THQ (5.1 million compared to 5.09 million), but so far the Origin HB has surpassed them both (currently at 6.9 million). So even though HB has been hailed for its DRM-Free cross platform ofers, its popularity was always because it offered good games at a cheap price.