Any game that fast rounds keep coming up like slots games can make a gambler to get addicted easily. Let's take crash games for instance, after losing a particular round the next one starts immediately, a lot of gamblers are unable to resist this especially when they are losing a lot of money, they would definitely get tempted to keep on gambling till they recover, this is what makes most casino games addictive
True. Slot games are so fast and you can go on several rounds in minutes, which means more money spent. It is believed that the more time one spends in gambling, the more chances they've got to get addicted. It's completely different when gambling on sports, you get to spend less time in sports because you'll have to wait for every game to finish, especially when it's a Parlay. Except if you wanna place another bet while waiting for your previous bet to finalize.