New casinos encourages their users to try them by the freespin or the double your deposit promo which is quite normal in crypto already. Nothing wrong with that if you deposit small amount to see if they carry out what they promise.
...
Freespins, bonus, and major promotions are the only reason I can try a new casino.
If you look on perspective, the majority of casino have the same providers, same games etc etc... only site capable to innovate or provide new product are able to receive attention from established players.
Of course I don't play for hitting a big win but just to relax and have a bit of fun...