Daedalus1138: I caved and bought the game. I'll try singleplayer at first, but, due to what many here have said, I will also venture into multiplayer. Hopefully, I'll have a good time. Many thanks to all of those who responded to my first post.
Ah, good news! Sorry for the late reply, but I find KF has one of the best drop out systems in gaming. You can give ALL of your acquired money to you team-mates, which is awesome in of itself, but what is the icing on the cake is dishing out of the weapons you own. Except from the default pistol, which is useless after you levelled 2-3 times in any class, every other weapon can be dropped.
For these reasons, the guilt from dropping out is heavily lessened, as long as you give a heads up when you are about to leave and distribute the weapons and money, people won't mind.