Probably only true because most alt-crypto speculators are dense in the head.
I get Litecoin, first mover after Bitcoin.
Namecoin was first after Bitcoin. IxCoin followed shortly after, though it was mainly the same as Bitcoin. SolidCoin came a while later, and become the inspiration for LiteCoin's predecessors, GeistGeld etc. LiteCoin's success came not from innovation or first mover status, but arguably PR—coblee capitalized on the SolidCoin controversy at the time.
I get Namecoin, more or less depends on the success of .bit, could lead to lots of cool stuff.
Namecoin's design is arguably flawed, as the cost of a domain does not scale with the demand for domains. After merged mining, Namecoin effectively died out. How many people still use .bit today?
I get PPCoin, a coin with POS built in.
Indeed, PPCoin seems to bring something new. However, that thing is arguably better inserted into Bitcoin than made into an alt-chain.
What else is there to get?
It's just a bunch of clones who's value is tied to the fact that ppl are dumb with money. When the speculators wisen up, the money goes back to Bitcoin. The smart miners are a bunch of fat fucks right now, I'm jealous of them. You know damn well most of them are just trading their alts for a mix of XBT and fiat.
Arguably, Novacoin, Devcoin, etc. bring some new things to the table. I agree, however. I own no alternative cryptocoins because I believe they are all destined for the dumpster.