I feel bad for the DC market always losing their music stores. It's understandable with the rents, other overhead and limited income factors.
That would be great if they can work a new location into a cafe environment. Besides that being a great combination for a cool place to hang out and shop all at once, it would also give them a potential real income while sustaining the music side. Nowadays, I believe that some kind of combination business such as that is one of the ideal ways to meet expenses and make a little profit in such a high cost of living area. Sure, there are music exclusive businesses within the Indie market and it's possible but think how many times articles like that highlight the exceptions rather than the norms. Can't say that I know for a fact that it's out of the norm but it sure appears that it's not the easiest thing to do in the DC market.
Concerning Indie music stores, I think another thing that helps some of them is when they have a fairly manageable website where others not in the area eventually know to go and can find some specific specialty genres or items. Call it a, 'if you can't beat them, join them' move if you want. It can help to keep the business coming in. Include reviews, links, MP3s, etc., to entice the surfers in. Why do you think Insound; who also tack on a dollar or so more per item compared to most; does so well? (Although I think their website redesign kind of sucks now in comparison to their old one.)