The lottery is more valid than casino games that empty users' pockets. Especially since there is complete transparency in the blockchain.
Casino games are much more interesting, and challenging to play, even though they can make the funds run out, but still possible to get big win, actually lottery too because there is no guarantee how many tickets you have will be the winner of the prize, everyone has their own favourite.
BTW welcome to this forum, if possible added images from your website will be much more interesting than just reading descriptions.