There are tons of young professionals in DC who make good money, have very few ties to New York, and are paying sticker or near-sticker for suits from J. Crew and Brooks Brothers. I think if branded correctly a store selling much nicer goods at only a bit higher of a price point would find a nice market.
Whats to say they appreciate nicer goods? Whats to say they want to move toward the higher end of the sartorial spectrum?
I think these guys go to jcrew or brooks because they know when they leave there, they will be in a fairly boring but decent quality suit that won't ruffle any feathers. From what I've seen, this is a uniform, nothing more, and brooks and jcrew are the known entity.
I think this store could work in the sense that it will stay afloat. I don't think this will be a massive money making venture, but if you enjoy it and don't mind not making a killing, you could probably be fine