Of course, I don't consider a poor game a good value regardless of how long it plays. I also admit that FPS games are handicapped by the high demands of 3D. A lot happens in a short period of time. I'm sure it is too much work and too costly to produce one 20-hr game. Much more cost effective to produce it in three or four, 4-6 hr installments.
One peeve though, If somebody produces a good game that plays for say 6 hours. I find it really annoying when the sequel (often using the same engine) only plays for 4 hours. Even if the sequel is better I still feel cheated if its shorter.
Sometimes I prefer a game that might only be a 7 or 8 out of 10 in quality if I will be enjoying it for more than one afternoon vs a 9/10ths game which only lasts a few hours.
Don't get me wrong. There is nothing wrong with a good short game. I'm just not willing to pay full price for all such games. I'll wait to they are discounted. Sometimes I'll buy them used. I'll even wait until they are long out of favor. I don't mind playing 1-2 year old games. They are always new to me!
FPS is not my favorite genre. I'm not sure I have a favorite but FPS is not it.
There were a few exceptions, Half-life (though this was a 7/10ths game for me but the play time was long and the story good), Soldier of Fortune, Star Trek: Elite Forces, MOHAA (but I got bored half way through it). My all-time favorite FPS was/is (I'm replaying it off and on) System Shock 2. This was a 10/10ths game for me (the only game that was).
<b>56K, slow and steady does not win the race on internet!</b>