I consider myself frugal and a low-roller, and my trips to Vegas a splash! Now - without going into exact amounts - I'm wondering: - How big is your bankroll, compared to your total trip budget? - How big is your bankroll, compared to your net (after taxes) monthly income? For myself, the cost of flight (from Europe) + hotel (1 person / 12 nights) is about 50% of my net monthly income. For all other things (meals, drinks, entertainment, except gambling), I also count on 50% of my net monthly income. And for gambling I'll put aside another 50% of my net monthly income. So the total trip will be about 150% of my net monthly income. And my bankroll is about 50% of my net monthly income and 1/3 of my total trip budget. I do have to add that the money for "other things" and gambling is interchangeable, so if I gamble more, I have less to spend on other things and vice versa. And also: If I would go only for a short trip, I'd still take 50% of my income for gambling (just play harder), but then the other expenses would be much less of course. So I guess it's also importand to mention for how many days your bankroll / trip budget is.