I see this statement a lot. Well, not a lot but I know
@mulven 's said it a few times, and now you. In this poll here, I admitted to 'Losing Player' - no question about it, I might add - so I'm not here to question your calculations, but I am asking out of curiousity and I'm very open to learning a few tricks.
I'm sure this statement can be true in theory, but exactly how would it work in practice? In IRL?
In my experience, most deposit bonuses are, at best, up to about 300, and they'll be 100% of your deposit. Let's use 'Up to 500' for the sake of the example, giving you a starting balance of 1,000 on each attempt to beat the bonus, and a max bet of 5 (200x).
If you play a high volatility slot with 200x worth of balance, obviously you will bust out before long, not only most of the time, but damn near every single time.
If you, against the odds, were to hit something massive - say, a 5,000x, you would still have to defeat in most cases 40x the bonus amount (20,000) and you would not be allowed to drastically change tactics lest your win would be annulled due to some vague casino protection term buried somewhere in the mile-long bonus rules. You'd be forced to keep playing the same type of slot, at a 30 bet minimum (just over half) for the remainder of the wagering.
In my experience, playing much, much lower bets, you need at least 3 really good hits of a 1,000x + as well as the slots generally performing favourable to beat a 40x wagering. In other words, you need them to perform against their nature. I have beaten a lot of bonuses - to my great satisfaction - but only because my low stakes have allowed me to sit through the inevitable long spells of dead spins. Playing on max bet, you don't really have the time to sit through them and will be forced to redeposit much sooner, much more often?
How many times, on a
realistic bank roll, will completing this venture be achievable? My guess: Not many!