Hmm, probably the many penises (and the men attached to them) I have personally interacted with. Some of the circumcisions are quite tight and they've said it hurts to jerk off without lube. A dry hand sliding over tight skin is not a good feeling. I personally have a foreskin so I don't need lube, but I've met people who do.

I'm not on either side of the debate, personally don't care, just sharing my anecdotal experience with circumcised penises.