Cuz supply and demand.
I made more on alt-coins today and yesterday than on Bitcoin. What gives? Namecoin up to $6+, that's past what LTC's ATH was until this month. LTC up to $19+? WTF Even FEATHER COIN, that's right, fucking FEATHER COIN, is doing well. I think people are just treating the more popular alt-coins as just extensions of bitcoins.
I'm really hoping that China and others realize that each alt coin is an opportunity for speculation and investment, and return. There could be a very long, long period ahead of insane moneymaking for all of us if that's the case. Bitcoin is the only one that really needs to succeed anyways. The rest can be for speculators. This could be the new stockmarket where millions of people get rich. If they get in early enough.
I really need to get into alt coins. Never even looked into them. Feel like I've missed that boat for the most part.