...why?
You make so much more than you could ever need just by playing a little caravan. I think I left there with two bars and I haven't even been able to sell the second one for a decent price yet. No one really keeps that many caps on hand. Are you just selling/saving/quitting/restarting on repeat to have the jangliest pockets in the wastelands or what?
I don't even know how to play Caravan. I tried...several times. I just don't get it. I also don't gamble. Much. I play a few games here and there. So, I get most of my caps by selling stuff I don't use or scavange. Although, I have a lot of unique weapons I don't use but can't seem to sell or stash someplace for fear of being robbed. I was robbed a few times in FO3 and now I hoard all my good stuff.
As for the gold bars. Yeah, I took all 37 of them. Then shot Elijah to death. I still can't figure out how to deliver the message to Veronica, I don't even get the option even though I have the note.