Honestly, I will sell almost anything that has a price tag attached. I don't have to like the content to sell it. If it's something my traffic likes, so be it.

Because I like money in my pocket more then I care if I like the content or not. Maybe that's just me.

Now that i'm totally off subject, the hardest selling niche for me was the manly muscle men. latin content I did GREAT with, but the big str8 jock stuff I couldn't move much.