Local Source for DDR Memory

[trlists at clayst.com]

I need to buy some DDR400 (PC3200) RAM -- preferably 2x 512MB -- soon, 
so normally I'd look for it locally and expect to pay a small premium 
over discount online prices.  However the local retail sources seem 
dramatically more expensive than online shops like newegg.com.  Not so 
for other components, retail is more but not 50 - 80% more.  Memory 
seems to be different.  And interestingly, the EBay RAM prices are 
barely better than regular online stores, also not typical.

Any suggestions for retail locations with decent RAM prices as compared 
to those available online?  Clues as to why memory is priced so 
differently from the online sources?

Thanks,

--
Tom