I think there is some big value in baseball live betting.
A couple nights ago when Oakland was down just one run in the 6th inning against the angels, they were +325 live. I was about to submit a bet on them and it expired. Of course they won lol. But +325 down only one run?
I got bumgarner in his first start after 4 innings at +125 in a 0-0 game where he hadn't even allowed a hit and the dodgers pitcher Ryu had allowed 5 and looked really shaky.
I've also seen some really good live bets in nba too. I think if you were patient enough to only do live bets and really disciplined on your spots you could make some good money.