Got me:
Skyrim Leg. Ed.: 24 EUR (whoot, now i got it on PC and can check if there is microstudders).
Galactic Civ II ULT: ~6 EUR
Tomb Raider Underworld: ~3 EUR
Tomb Raider Surv. Ed.: ~13 EUR (DirectCompute TressFX owns, no proprietary stuff).
Dust: ~7 EUR
Those are almost all of my Steam Games, the only game i already got was "Oblivion and Civ 5" but except for Civ 5 (my last PC retail forever) i never paid any price higher than 24 EUR (average about 15 EUR).
USD to EUR isnt same conversation because US got better prices but i never enjoyed Steam, there is just no better (DRM free) options for the chosen games and prices are actually very cheap on Steam when gotten at the right time.
Btw: I would never get FTL from Steam, because it can be gotten from GOG, DRM free, there is no better deal. I only use GOG and Steam Games
on my PC, but Steam Game only when 1. very cheap and 2. no GOG option available. The other games are on consoles (the only retail games i buy).
Although have to take care, some Steam games arnt "only" account bound to Steam,
they got a additional DRM and that kind of stuff can "junk down" a PC, sadly.