Of course the best way to find out what your clients want is to ask them. One thing that disappoints me about most stores I go into { here in Texas }is that the majority of the stock I see are D sized guitars. There are very few OM's or 000's. And forget about 00's. Not everyone wants or needs to play a dreadnought.

And - in my opinion - Collings guitars or some of the best available anywhere. Cotten Music in Cashville - I mean Nashville - stocks a lot of them.