That's how it is almost everywhere with almost every shop. Around my area here it's a lot of Planet Audio, Polk Audio, and an array of the cheaper brands. People's choices are only as good as their best educated guess it seems and in most cases that education isn't much more than what the salesman said or because that person knows somebody's buddy who's using that sub or speaker. I've actually had guys demo their setup for me, telling me just how awesome it is as we walk out to it. Just to have a look of bewilderment on their face when I explain in as much detail as I can what I personally didn't like about it when I heard it and what I would've done differently. Then come back two weeks later asking how to make it better. I think they do it because after I attempt to educate them they start to REALLY listen to it and realize that something isn't right. I am still working on learning how to read T/S params and tech specs and know how good that driver really is and what it's optimal use would be. Still learning how placement, axis orientation, and other installation issues affect the given response. Still learning what the good and bad compromises are for different goals. There's such an incredible amount to learn its really almost overwhelming. I would love to learn it all someday though realistically I know I'll only ever scratch the surface. There's a wealth of information available on here and some guys on here with just as impressive backgrounds and knowledge in this hobby/field. Even with all that it still comes down to two things in my opinion. First is the most important thing, that only you know what sounds good to you. Second is that it all comes down to the installation. The cheapest speakers in an ideal installation have the potential to outperform in every way the most expensive speakers in the least ideal installation.