Went to a nice spot today in West Chester, PA called Mad Platter. Bunch of brand new Indie stuff + lots and lots of old stuff. Plenty of $5 racks stuffed with randos and weird stuff. Owner is a weird old lady with a mustache.
Good spot!
Another Vinyl manufacturing plant worth mentioning: Furnace MFG in Fairfax, VA
http://www.furnacemfg.com
I've done 2 jobs with them, an LP and a brand new 7". Top quality everything...seriously not one complaint.
FYI....