If you're there to maximize your chances, instead of "entertainment" gambling, I wouldn't play the slots at an Indian casino as the main form of gambling. Stick to the table games where the odds are fixed. If you've got any "techniques" for games like blackjack, it's actually a bit more profitable at the Indian Casino, as there's a bit better odds the dealer, overhead surveillance, or pit-bosses aren't as experienced as the Vegas ones.
It's simple supply/demand and competition. Most Indian casinos have a relative monopoly on casino-style gambling over a large geographic area. One state, one tribe, one reservation etc. In comparison, places like Vegas and Atlantic City the competition is very intense in such a saturated market, and the payout returns on the slots are much higher to compete for the gambling dollar, sometimes the aggregate return is as high as 98%, maybe more.
Where the casino gambling is more of a novelty, the payouts on the slots are less because there's no competition next door.
If you are going to play the slots, the best you can do is try to find an open machine that's placed on a corner or high traffic walkway where a winner would be highly visible. If the casino has any machines with better odds, there's a chance they'll be placed where winners will be highly visible to attract and encourage more gamblers. Playing max bet every pull, if you can afford it, is best because when you win, the jackpots go up exponentially. When you hit a jackpot on three coins, the payout is more than three times that of one coin, etc.
Otherwise, beyond the main aisle theory, the machines are random, so wandering around randomly is just as good as feeding one machine the whole night. When I wander around randomly at Vegas, plunking quarters here and there, the look on some elderly gambling addict's face when I walk up as she (it was always a woman) finally leaves the "cold" machine she's been feeding all night, and win all of "her money" on the first pull is just absolutely priceless. If looks could kill.
I could try and tell them something about probability and statistics, but I doubt it would help. LOL...
Also on the slots, you might want to play a progressive machine, where there's the shared jackpot between the bank of machines, or even a "network" of all that type of machine across the country. You can tell these by the big LED sign above them that's constantly counting up money. You can win the little jackpots from the slots, and there's at least the chance on the progressive jackpot too. Many progressive jackpots go up into seven figures. The odds, while still astronomical, are at least a fair bit better than lottery tickets from the gas station.
