Actually sports betting is better than casino or slot game because there's a thrill on it and for me even at lose you can feel the enjoyment of the game afterwards compared to other gambling form, you know what i meant? 
If you're looking for tips as well, actually there's a lot of fan pages and sports sites that sharing analysis, and yeah you must be a fanatic so that you can adopt it easily and of course you can pick a best team immediately which is good these days.
If you can get good tips, maybe you can win because, with so many tips, you may find it difficult to choose tips with a high chance of winning. But if you like a sport and you really follow every match, maybe your chances of winning will be bigger and coupled with the tips that you can find, your chances of winning will be even bigger.If you're looking for tips as well, actually there's a lot of fan pages and sports sites that sharing analysis, and yeah you must be a fanatic so that you can adopt it easily and of course you can pick a best team immediately which is good these days.
But I don't think we need to become fanatical about one particular sport because we can just love it as much as we can.