Thank you, I'll keep on looking for them. Is it worth it?
/sarcasm
No. Quit now.
/sarcasm off
What a silly question, you bought the game, you determine what quests you want to do or not do.
Me? I'm doing everything. As a point of reference, the caps aren't really hard to come by, there's like 100 in the game laying around and you can get them randomly from drinking Sunset sarsaparilla so if you just casually collect them before you know it you'll have enough.