Oh yes. Prices in the shops in Seoul seem to closely track eBay's prices, and on the lower side. Plus last week's 10% drop in the KRW should get you a nice bargain. There are more shops at Namdaemun street that overlooks the reconstructed Namdaemun. I've bought a lens (Canon FD). And also at Chungmuro (Mamiya 7ii). Both are comparable, just go shop by shop till you see something that meets your price level, if its reasonable of course considering its a shop and they need to make a living.