Forum:Which one is the best merchant in New Vegas?

OK, I have played this game a lot and also love the vendors glitch, so few things I want to know.. best merchant according to money..? Most say Gun Runners but that robot just has 2-4k caps, too less, same with Crimson Caravan(most of the time, sometime higher. So who's rich? Secondly, is there any merchant who sells/buys weapons as well as repairs them? I can easily repair all weapons and than using the glitch get the money back, like Old Lady Gibson but she doesn't sell weapons so I can't use the exploit over there :( Also who do you think is the cheapest and best at repairing weapons?

btw, I am level 14 and soon to be 15