Reminds me of the people who have 10,000 songs. :/

10,000 songs really isn't that crazy. I have just over 4,000 myself and have listened to them all at least 5 times. The songs and albums I really like have probably been listened to 50+ times easy as well. I have to say I don't even listen to music on that regular a basis anymore.

1. That's because it is a lot less selective about the games on their service. When you manage everything from Team Fortress 2 to Diner Dash, you tend to be spread out a lot more.
2. I agree that pricing is retarded for countries that aren't America. However, there are workarounds. I recently helped someone get Dawn of War II for a lot less than he would've had to pay if he bought it from his native country.
3. While having extras can be very nice, GOG doesn't hold a quarter of the games that Steam does. With that mass of games, imagine trying to get every developer to give them something to throw in the download like a soundtrack or wallpapers. Dawn of War II released a free soundtrack through Steam regardless of whether you purchased it or not, and Audiosurf included most music from Valve games, both very nice bonuses, but not the norm.
4. I agree with you on this one. GOG has a very mom-and-pop kind of feel in response to the giant chains. However, I don't really hold this against Steam. I just attribute it to how cool and unique GOG is.

Damn, epic fail by Steam.

I've got at least 15.000 songs, probably more. Listened to all of them at least once, though I generally find some (read: many) favorite albums I pick out.
Around 100 games on Steam, 62 on GoG, 5 on Impulse and 7 on Gamersgate, and at least 100 retail PC games.
I should probably try to get out more, but meh!

It's only been a few weeks. I did the same thing you were doing, I wanted to play Icewind Dale 2, but couldn't find it. I went to their blog and saw that those games were removed. Along with a bunch of Sierra games (taken off for the same reason).