Other stores have a much simpler strategy of only stocking what people order if it's below a certain cost, and directly ordering the rest on request. Has BG tried that at all? Also, stores never seem to monetize their best resources, (the space, of course). Since Plainville is such a nice space I'd wonder if that might not be beneficial in lieu of sales.
Either way, I don't think lamenting the customer base as being a burden is going to drum up much support.