Where to buy Simpsons 1-21 box set?

[danielle c]

I'm a really big fan of The Simpsons and I was wondering if there is any place/store I can buy it at?
And I live near SF , California.

 

[Cruel_Intention]

I'm not sure what stores will carry it but you can always check online I.E = Amazon and Ebay

 

[Whofreak]

Only seasons 1-13 and 20 are available.. and as far as I know, they arnt available in a big boxset yet :S