As for the shopping experience, Burkholders and Obie's are the exact opposite ends of the spectrum. Burkholders is big, light, airy and organized. It's easy to find everything and the staff is very helpful. Their fabrics are beautiful. The prices are typical of any LQS.
Obie's is a tiny, cramped, dark and totally unorganized place, but it's an experience you shouldn't pass up. The staff is nice (not overly friendly) but they know where to find what you are looking for, which is a miracle in itself. There are piles and piles and piles of bolts of fabric. It is claustrophobic and when you leave you will feel like you need a shower - it's dusty. One good thing about Obie's is that some of the fabric has been there for a while, and the don't change the prices on the bolt, so the prices are reasonable.
I enjoy both when I'm in the Lancaster area. Happy shopping!!!!