One thing that hinders local music store sales is that they must charge state sales tax, when most of the internet vendors to do not.
This adds another 8 percent or so that the store can't get around paying, even if they match the internet prices.
I would gladly pay a little more (and I have many times) to purchase locally, but it's too late. No local stores here stock arrangers other than really low end product.
And I must say there is simply no market for high-end arrangers here. A store would have to hire someone knowledgeable enough to create a market, by doing demos, expos and such. They the interested people would probably at least comparison shop via the internet anyway.
DonM