I read that video poker had the second best odds for the gambler (compared to the house). The best odds were black jack. I supposed video poker would include black jack too?
At any rate, playing as often as he did, he would certainly lose money in the long run. His brother said that with the comps he received from the casinos, he ended up earning some.
Black Jack requires human interaction which I don't think Paddock cared much for.