I did a Google search for this, and couldn't find any information, except for one post that was waaay off. So, here's a list of all casinos and their max winnings. I've also included the max comp, which you will get between 500 and 2500 caps before hitting the limit (depending on that casino's max). I played Blackjack and bet at 100 chip intervals, so this should be as close as possible to the max.
Vicki and Vance: 2500 caps -- Max Comp: Reinforced Combat Helmet
Gomorrah: 10,000 caps -- Max Comp: Reinforced Combat Armor
The Tops: 10,000 caps -- Max Comp: Hotel Suite**
Ultra-Luxe: 15,000 caps -- Max Comp: Hotel Suite**
* - This could be 6000 caps. I couldn't read my own handwriting :-( There is also a "Dapper Gambler Hat", which you recieve at one of the lower payouts (I think the second).
** - Both suites only seem to be semi-private, with random other patrons wandering in and out. At The Tops, all containers in the rooms are freely accessable, while at Ultra-Luxe you have to steal items.
The New Vegas Wiki has all of the max values. It pretty much has everything. Don't people search for wikis when they want to know something about a big game nowadays? --- 86.5% of all statistics are made up on the spot. If wishes were fishes we'd all cast nets. -Gurney Halleck
My advice (stolen from somewhere on the interweb) is to get close to payout at Blackjack, then get an auto-save and hit the slots looking for a 3 orange payout, or at least a few G's. You can more than double the max payout in these situations... but you better have damn close to 10 luck.... --- 75% off all statistics are made up on the spot...
_Emanresu_ posted... The New Vegas Wiki has all of the max values. It pretty much has everything. Don't people search for wikis when they want to know something about a big game nowadays?
Usually when I Google stuff about a game, specifically this game, all of the major Wikis come up at the top of the list (there's what, three big ones?). I also did a quick search on The Vault wiki, which I find the most comprehensive, and nothing popped up. I ended up having a glitch and hitting the main Atomic Wrangler article on The Vault Wiki yesterday, and that was the first time I had ever seen reference to payouts.