Only having $20 wouldn't do me much good since I pretty much only play the $1 slots. I remember when wife and I went to the Hard Rock Casino in Tampa. I put a $20 bill into a $1 slot, going from $1 bet to $2 bet. Got down to $7 left and hit a nice one.........$1000 plus the $7. Took the ticket over to my wife, who was playing a $1 slot w/$10 and I thought she was going to go into SHOCK! Big smile, hug, kiss!
Another casino we went to, while living in So Calif., wife won $200 ($1 slot) in front of the casino and I won $200 ($1 slot) in the back. We'd only spent $20 each, but left the casino with that $400! One lucky day for both of us.
Generally, we will each get between $100 and $150 each for gambling. If we are loosing too much, we stop playing.
It's nice to win, but it's sort of nice to "break even" also. That means that you take home what you brought.