To me slots seem quite pointless, it's just a bunch of expensive graphics, flashy lights and excited noises that are triggering endorphins for some people - seems rather boring if you've ever worked on the backend of this type of project. I find sports betting much more interesting because there are a lot of special offers thrown around that you can take advantage of and make some guaranteed money. You just have to know how to take advantage of any pricing mismatches and have an understanding of where the bookmakers might be giving you better odds than they should. Of course there is an element of risk, but if you don't get too greedy then it's possible to actually make money over the long term.