How come I can find many local water treatment installer/service companies that want to charge 2 to 3 times as much for a Fleck valve water softener complete with 1.5 cu ft Resin as I can find online? -Not including their insallation charges. Their installation charges are cheap, but they all jack up their softeners. I thought there was some protection from this happening by Fleck or something?

Should I just buy one way cheaper online, have it installed, and call around till I can find one of them that will install a softener I have and not theirs? Seems to me that is the cheapest route to go. Am I missing something here? It's just a little scary buying one online. All the plumbers I've talked reccomend not to. Maybe just because THEY want my sale. I don't know.