not sure i agree.. i do the same thing, have way to many games I have not played. But I far prefer having the game for someday then the never even knowing about it. So the flaw is me buying game I may never play.. IMHO or as you say.. dang i was so sure i had somthing new to say.. and well maybe not..
my point I have to many, but I think its better to have and not play then to not have at all (but it would be easier on my checkbook).
Here's my list of Steam games I've never downloaded or played less than a half hour:
18 Wheels of steel: American long Haul (lol - don't say it, I already know)
AI War
Alan Wake's new Nightmare
Alice:Madness returns
Alpha Protocol
Aquanox 1&2
Assassin's Creed 2
The Bard's Tale
Batman:AA
Bioshock 2
Blur
Bully
Call of Juarez:Bound in Blood
The Chronicles of Riddick:Assault on Dark Athena
Cold Fear
C&C:RA 3
Commander Keen complete
Company of Heroes: OF & TofV
Condemned:Criminal Origins
Counter Strike
Cryostatsis
Crysis Warhead & Wars
Darksiders
Day of Defeat
Dead Island
Dead Space 2
Deathmatch Classic
Deus EX:HR
Doom 3 :R of E
Doom 2 :h on E
Duke Nukem forever
Dungeon Siege 2&3
Earth 2160
FEAR 3
F1 2012
Final Doom
Flatout 2
Frontlines: F of War (broken)
Full Spectrum Warrior and TH
Ghostbusters
Gothc 3 : FG enhanced
GTA 3
GTI racing
the Guild 2
All of the HL2 extras
Heretic, Hexen, hexen2
Hitman 2:SA
Hitman
Hitman: BM
I am Alive
Indigo prophecy
Juiced 2
Kane and Lynch 2
King Arthur
All King's bounty
Kohan 2
LA Noire
The last remnant
Soul reaver 2
Mafia 2
Medieval 2: TW
Napoleon: TW
Nexus: TJI
Oddworld
Orcs must die
Overlord
Prey
P of P:S of T
Quake
Quake 2 + extras
Quake 3
Red faction 1 &2, G
Risen 2
Rome: TW
Runaway
Stalker CofP and CS
Saints row 2
Sanctum
Sniper elite
Spore
Jedi knight 2
Stronghold 1,2, crusader and legends
Stubbs teh Zombie
Supreme Comander 2
TQ:IT
Thief;DS
Splinter Cell

A
Trine
Tropico 4
Ultimate Doom
Uplink
All Warhammer
X pand rally
Add to that, from D2D :
NFS: hot Pursuit (the latest one)
Amnesia
Mount and Blade
Supreme Commander and FA
Sword of the Stars
GTA:Vice City
Mirror's Edge
drakensang
I just spent more time typing that out than I did playing most of those games, and I'm not sure why.
Probably to prove some sort of point.