Well, size matters, yes. I'm talking about men here.
Although I've heard that even a small equipment works well, it won't change the fact that you are seeing a tiny thing hanging there, you know?! It's not masculine. Maybe it's just my opinion, but I guess women tend to like men who are taller, older (not always, but you know what I mean), more experienced, big hands...big penis (normal size is just about right). Anyway, the man, in many aspects, is required to be more and more and more, much more.
Seriously, whenever I see a man with tiny hands I don't give enough credit to them. It's sad I know, but I look for masculine guy and tiny hands just don't go for me, it's like I'm playing with a little kid.
Same goes for small penis. I guess...it's all ugly down there anyway.
Not that that's a bad thing.
I don't know, but yeah, normal size is good, tiny is sad.
Man may feel the same way about breasts. Small=bad, big=good. It's a superficial world we live in. I blame the aliens and their giant heads. Hihihi!