You can get all the generic Lego blocks you would ever want. The "problem" is kids want all the fancy sets.
For instance: http://www.amazon.com/LEGO-Bricks-More-Builders-Tomorrow/dp/...
For instance: http://www.amazon.com/LEGO-Bricks-More-Builders-Tomorrow/dp/...
However, I realize it's working out for Lego, and if the licensing is what's necessary to keep them going, then I'm not faulting them too much.
http://kingdoms.lego.com/en-us/default.aspx?icmp=COUSFR33Kin...
And this fancy castle?
If they don't know it exists, they're less likely to want it.
Now, a way to organize these...