In marketing, promotional trends are made to lure more people to the game. That's one of the key factors in branding your products on the internet. Regardless of what it looks like, just make it easily accessible, with video proofs on how it pays huge while you still catch the fun, people will troop in!!
Infact, most people are even more interested in the recent trends than any other thing. Aviator came and left with millions of impact, what's their traffic level today looking like? Down! That's just it.

You don't have to be confused about anything here. Casino games are way different, with a different ecstacy level and a refreshing fun type away from soccer/football and basketball. Sometimes, people just need something a bit calculative to play with.