Yeah I've never made a prop bet, or even a points bet, that feels too degenerate to me. I have occasionally made a $10 money line bet on a game and that does make it more interesting to me in that now I have a small stake in the outcome. YMMV.
And people do spend stupid amounts of money on Powerball tickets too. I just think if the state is running a numbers racket, that they don't have much of a leg to stand on when they want to regulate other gambling.