I've bought quite a lot of games myself from steam and still yet to play them.
I bought mass effect for £7.49 or so a couple of weeks back, probably the worst purchase I've made. got no idea on the story and the upgrades seem to pointless with not knowing what it is I'm doing.
Got crysis last week. not done much on the first but it looks brilliant with everything on very high, still downloading warhead.
Saints Row 2 - got this a month or so ago for £3.75 I think, best purchase by far. so many people complained about it having port issues, not noticed anything of the sort. Okay so of the cut scenes are a bit spazy but it doesn't effect me playing.
this week I bought KOTOR. installed this a few weeks ago and started it but seemed a little out of date due to the options for running on a new system, but it's nice to have it in steam for only £1.74... bargain.
also got dead space, played the demo on the 360 and it was an okay price.
today I was interested in res5 and ghostbusters. res5 is still a little to much for what it is, if it was £7.49 then yes but otherwise there's better buys at the moment. Ghostbusters I will get. Wanted to get this a few weeks ago to get double points off somewhere but left it until the day before yet the points weren't availabl, complained and said I could still get them if I emailed them my order no. but thought that's too much of an effort. so seeing it for £7.49 is a well welcomed surprise
hopefully republic commando might get the same treatment a kotor