The lights are on
OK so this is the easiest glitch since the anti material rifle incindeary glitch. All you have to do is free Primm and complete that part of the quest, including putting Primm Slim as sheriff, wait until the drifters invade the Vikki and Vance casino after dark, kill them all, wait a while again until you can gamble there, that is the ONLY hard part of this glitch. now buy any amount of chips (1000 is best) wait, and cash the chips in, if you go to your Pip-Boy and look under misc., you'll notice that the chips are still there, cash them in and they'll still be there, repeat, (buy more chips so this glitch will go faster), and you will soon be a billionaire like i am now!
(this is patched)