That's true, but the point I want to make in this case when discussing free spins and buy bonuses is certainly in terms of profit and gratitude. It's not that we won't get a big win in free spins because it could happen if we're lucky enough for that, but the most important thing in this case is that whatever win we get in free spins then in the end it's our luck and I don't think we need to feel protested if the results we get don't match our expectations because it's free and when everything refers to free things I don't think we need to complain about what the site gives.
Unlike the buy bonus where there is hope further than we have so that what we bet at least gives a profit even a little because it is a bet that is done (not free) so there is a moment where we feel like seeing the victory created from the buy bonus done.
In terms of luck, no one knows that the results of 10 free spins are more profitable than buying FS. If you look at how to buy FS, it is a fast turnover in spending capital because if the capital is $100, it is only 5 times the purchase if executed with the smallest bet. However, if the capital of $100 is rotated manually, it will have a greater chance because it can have the opportunity to get a big win and have the hope of getting free spins for free.
Of course the difference is quite large but it depends on each strategy in gambling. Even if someone who has a strong mentality will spin manually with a bet of $1 from a capital of $100 and he has great hopes or vice versa. For that, the nature of the gambler must eliminate doubt because if there is no doubt, usually we will not be disappointed with defeat.