I really do like the grubby, dirty, old dive locker shops manned by a crusty old dude with lots of stories. You never know what you'll find in some of these shops. But that's because I'm a grubby, dirty, crusty old dude with lots of stories.
A family of mom, dad and teenage daughter who are looking into scuba diving for the first time are going to feel very different and they probably won't care about how much heliox the crusty old dude has blended in his life. All things being equal, they will go for the clean, neat store. In some markets it won't matter but in markets with lots of dive shops where competition is intense, those things will make the difference as to who gets the customer.