Actually I myself never went in a traditional casino but have seen from a distance (didn't want to pay fees to enter). The "local" underground casinos I've seen are mainly horse racing or some kind of bet on a player (boxing or something else) and it's all rigged with very high house edge. Slots were not in those things as I could remember but yes, traditional online ones anyway always looked cool, especially western 2d art for me:)
Never tried Joker King no, but I get what you mean:)
Where do you live slaman? You are missing some fun by not visiting physical casinos. I enjoy physical casinos & playing online, bitcasino.io is the best crypto casino by a long way but you should experience a physical gambling session at least once in your life.