Let me explain WHY I think they're trash, especially for MMA betting purposes. I'll look over the MMA bets thread and I'll ALWAYS see something like this: you have a fighter who is like -200 and instead of playing it straight, that person gets greedy and parlays it with a -400 favorite to get "value". This encourages undisciplined betting and many in this thread do it so you can't tell me parlays aren't losing anyone money
Mathematically speaking, yes you have the potential of a greater return and a lesser loss by parlaying two teams instead of playing them separately. But you are also giving up money every time your parlay splits (one winner and one loser). It all evens out mathematically, that's not my hatred w parlays. It's the psychology behind it. How many times do we hear about the jackpot parlay that hits and pays like +2000? Pretty rare. But how many wasted parlays do we see people make trying to chase that parlay? And how many times do we see people throw stupid props in these long parlays that the person normally wouldn't play, but are only throwing them in a parlay because it'll make their parlay payout so much more kick-ass
So yes, mathematically there's nothing positiven or negative about parlays. But yeah, it opens the door for bad betting. Why do you think limits are much higher for parlays? It encourages people to play them