I never get spam messages on MSN. Probably because I have it set so I have to accept anyone who adds me as a contact and I only add those I recognise or have left a note explaining who they are. I don't use the hotmail address for anything other than signing into msn.. (not that you have to use a hotmail address for msn anyway) and I rarely get any email to it at all - spam or otherwise.
You say you have to pay for AIM or something? I've never had to pay for a chat feature in my life.
Maybe you are too young... but I never said what you say that I said... for years I have seen that AOL/AIM is introduced to the ppl for the infamous 1000 hrs free internet CD, then u got hooked, and so on... besides I think Hotmail will win this poll, so I'm on the winning team Yay!