A lot would depend on the cost of floor space, but a I have sometimes thought about a variation of Pedrillo's idea:
Arrange a store with all equipment on display (on wheels/rolling stands) in a large area as you walk in. Two or three different sized, but treated, listening areas sit empty in back. move gear as necessary for a demo.
As a practical matter, more affordable gear may be arranged in standard fashion in another room. I realize that this idea is space/time intensive and won't work in Manhattan, but maybe Manhattan, Kansas?
Arrange a store with all equipment on display (on wheels/rolling stands) in a large area as you walk in. Two or three different sized, but treated, listening areas sit empty in back. move gear as necessary for a demo.
As a practical matter, more affordable gear may be arranged in standard fashion in another room. I realize that this idea is space/time intensive and won't work in Manhattan, but maybe Manhattan, Kansas?