Some skateboard shops used to be even worse…not so much these days as they're suffering from the internet way more than LBSs….Slam City Skates in Covent Garden had excellent stock levels and carried loads of great brands, but the staff there were invariably such choppers.
Snowboard shops can be terrible too, typically rubbishing any brands they don't carry. I recall going into one in Poole (not Ride, the other one just across the road) with a friend who had bought a Rome Agent deck and a Dakine board bag from them for the best part of £450. The guy got really funny with him when he heard that he'd bought some boots from another shop.
He was trying to tell us that '32' (the brand) were universally regarded as rubbish…well, sorry mate, but they're the best and lightest brand out there, as evidenced by the fact that around 80% of all seasonaires I know wear them and they're carried by every snowboard shop worth shopping in.