Free playsssss. Bonuses are lies imo, they give you additionals just to lose them one way or another to them. Well, if both were added, then why not. I just hope the pandemic hasn't killed the casinos
business spirit Christmas spirit. A lot of people would be quite happy in getting a few free plays here and there, and tbh, their bonuses are just a way for more people to spend money in a low key way.
Promotions to obtain items such as: iphone or other smartphones, game consoles or any other electronic device. It would also be nice to raffle a trip to some exotic place. Bonus-type promotions are already widely seen ... at Christmas they must offer other things.
Maybe a lottery with the said prizes, and the entrance ticket is either free or if the casinos want to profit, the entrance ticket is based on reaching x amount gambled in their site. Ofc, there's only one ticket per person, since if multiple tickets were allowed, whales would have way too much of an advantage and the lottery would probably lose it's purpose.