I can't imagine how much money we would spend if the casino required x40 wagering requirements. But perhaps it's still worth trying for other people because of the possibility of taking the bonus from the free spins.
But if we don't intend to take any bonuses, we can try playing on that site. Oh yes, @OP, are there any other conditions when we don't take any bonuses from your casino? For example, we deposit $15 and just play normally but suddenly, we can win $50. Can we withdraw it directly or are there other requirements?
The money will depend on your capacity. We are not forced to deposit big here but sometimes a casino has a minimum deposit amount which you will need to match if you want to avail the deposit bonus. The smaller the amount the easier for it to be accomplished but it all still depends on our luck.
If we are not lucky enough, we can't still fulfill the wager requirement and we will fail to get the bonus. If they offer free spins without the need of depositing then that was great and worth a shot because at the end, we still have nothing to lose here. Deposit bonus are only optional and can always be ignored. Don't worry there are no more hidden terms if you win with your deposit.