That is a hard question to answer, are you just looking for validation or really asking?
What else is in the town? What is the demographic? What are the income levels? House princes/sizes? What is the area's disposable income like? Is there a thriving downtown? Where do you want to locate yourself? Busy area with walking traffic, or a destination spot? Any other competition in the sounding area?
Think I would talk to local record stores, and repair shops. Anything else that is "electronics" What kind of store do you want? Just new 2ch, or mix of new and vintage with a repair side? Do you want to sell media as well? As others have said, the main thing now is sound bars and home theater.