i think that most stores just hire kids who know squat. I know for a fact that this is the case a t a local stor ein jupiter (wont make the name known, but the stores initials are PR lol). they are the msot rude people ever. as far as barrier reef, i have never had a problem with them, they have always been helpful to me and my firends. but i havent really bought anything from them. as for good customer service, oceans below has some fo the best. rob knows what he is doing andif you are ever up in the area of lake park check him out. he is always willing to help you with you aquatic problems. but backto topic, ithink online is definately cheaper because of them buying in much mor equantity than the locl stores. most online retaielrs ,both aquatic and non aquatic, have huge warehuoses that they can store these products, or they have such a large client base that they can afford to sell items for less. local stores suck (with the exception of a few local ones in my area). thats all