Yet they won't work in the long run either. The only real 'strategy' to win in gambling is to be the house
Of course. (it's not sarcasm)
There is no involved in pure gambling games, it's chances and luck only.
There's some beting systems that "changes" (simplified definition) win chances, but only for short run, and finally You'll end up with pure randomness anyway - but mixing systems, changing them during gameplay, testing it, researching and such is very funny. For example when I play with 0.1 bankroll, I like to make it 0.15 or so with Oscar's progression, then bet for a while without any system, run Labouchere with 5% target after, then some small, risky Martingale et cetera - gambling is fun if You assume that Your bankroll is "payment" made for game, and winnings are just optonal. If someone gambles only for profit - it's not way to go. Of course we are all only humans, sometimes even I "want to win", falling into addiction or just blinding myself - no shame here, that's part of gambling too.
By the way, are Your nick is related to Wharton's art?