What you're describing is pretty typical though. You buy a product either because of advertising, because it "looked" like a good choice in the store for whatever reason, it was recommended on Wirecutter, the Home Depot worker or a contractor pointed you towards it, etc. And it seems to do the job and, for the amount you spend on that item annually, it's not really worth doing your own comparison which you probably aren't in a position to do scientifically anyway.