i found a strategy were the odds are in your favor in keno, but i havn't had the patience to run it enough times to be 100% sure. you should have worked out your odds before playing, keno is really unfair especially if your picking 10 numbers. This example below assumes the computer picks 20 numbers, when it actually picks 10...†
Probability of catching 10 numbers is†0.00001100, thats;
Odds: 9,090,908 - 1
With a single ticket you got more chance winning the lottery twice in a row, or probably all three at the same time, of catching ten anyway.
What you want to work out is your expected return on your bets and its dependent on how many numbers you pick, and i believe some are in the green ;) How many numbers did you pick when you were blowing that 50mil?