I would say that $100 is my minimum amount to budget when visiting a casino. When playing withR$100, the only table game I would be interested in playing is roulette, and only if the bet isR$5 minimum or less. Only getting 10 spins at the table is not my idea of a good time.
However, in general, playing at max bet on a cheaper slot machine may give you a chance at winning larger jackpots, while playing at minimum bet on an expensive machine may give you a chance at more frequent, but smaller, wins.