Actually when you think about, the longer the cock, the more sexual adventurous things you can do. Or at least make it easier to do like:

Having sex Froggie Style--When the woman is lying flat on her stomach, and the guy gets on top of her and enters her from behind inside her pussy.

Having sex while both people are standing.

Also, a long cock is better for Glory Holes. I think your cock needs to be at least 6 inches for Glory Hole sex.