amok: and GamersGate also have
Chronicles of Riddick: Assault on Dark Athena 75% off (here it is £2.50) as part of the Swedish Developers week.
Uses tages, but I think it definitely worth the asking price. It is a quite good FPS, and you also get the remaster Butchers Bay with it.
I have not seen the complete pack sold so cheap before, not sure you are thinking of the individual packs? This is made up of all 4 of them, so it then translates to (5-7)*4= 20-28
edit: hmm, I can not even find a complete collection on Steam, only the 4 individual packs...
Sinizine: 7 bucks is the base price for one of the packages, and yes it's been on sale dirt cheap. Pretty much why I bought it. Own all 4 and I know I didn't pay over 10 bucks.
However Steam's package doesn't include the Sonic games (sold seperately) so I guess that's where the price difference comes in. Still pretty steep difference.
There are a few games missing from Steam's version yes, ToeJam and Earl is missing also. I still think all things considering it is a good deal for a more complete collection.
I looked at Steam now and the base price is £5.50 for a pack = £22.00 for all 4. Not exactly -85%, but it is more complete.
Edit: Did a quick count, and there are 40 games in total over the 4 packs on Steam, and the GG Gold collection includes 48 games, so this include all Sonic games and spin-offs (6 games) + ToeJam and Earl 1 & 2. I do not know what Amazon includes.