Good Game, I Go Home Now

So I made a resolution not to bet on sports. But someone on FCP offered me Ohio -7.5 which was the exact same spread that the sportsbooks were offering. What makes this bet +EV is that I won't have to pay any vig if I win the bet. So that means that I'm getting at least a 5% discount on my bet. Now a 5% edge is too big to pass up in my opinion. Or I'm just a degenerate. It's fun being able to justify degeneracy with some math.