Pet stores in my experience are hit and miss. Sometimes ya pick up some really nice stuff that they don't even realize they have, hence your Synodontis Multipunctatus. I've seen some real lousy stock at LFS
's and then every now and again you'll see something that ya quietly pick up lol, like my profile picture. Found that one in the mixed cichlid tank about a year ago, I got pretty lucky.
It's all a crap shoot IMO
. Online you pay the price for sure BUT... Some sites you can pick size and sex which is a HUGE plus.