You know that the casino kind of "wants you" to go for the parlay? In other words its a trap made for the addicted and overconfident greedy gamblers. Any marketing method is made to target some emotions and here they are.

You may have some insider news, thats another topic but blindly going for a parlay can end up with good or bad results. Most sports betting sites do give out some strange options like goal in these many minutes or this person to get yellow card. I think these are done to diversify the market for that game and give players more options to bet on than the win loss or draw. Sometimes they can have good odds and may be worth more than parlay.