I was actually thinking I should buy my own altcoin if it got too weak, yet I wouldn't want to be the only person buying it.
That's the way I feel about Yacoin at the moment. I woud say one actual problem of altcoins is that you could burn your self hard on them. Especially if when I realize how much these btc could buy me now.
There hasn't been a real altcoin bubble yet, but if too many people lost too much on alts they might stick just to BTC. Bitcoin had a nice crash from 30$, but there wasn't many lives destryed back then and everyone sticking to the plan got out nicely.
Altcoins will be different on that one.