1) Yes. I own about 20-30 different altcoins.
2) I obtained my first bitcoins on November/2013. I'd known about them for about a year before then though.
3) Yes.
4) I keep all of my coins. So I can't tell whether or not I benefit, or if I'll benefit in the future.
5) B of course. As I've said, I keep all of my altcoins. I prefer quality coins over get rich quick coins.
6) For Education/Adventure yes.
7)-

None that I can think of.
9) Not sure.
10) I don't know how I feel about this. If well executed and bitcoins break it more into the mainstream, I can see it being successful.