I worked in retail management from the mid 80s to the mid 90s. When companies struggle, they cut inventory and payroll. As a result, shoppers can't find what they want and kind find employees to help them. The downward spiral begins and eventually they go out of business. Here in New England, we have seen regional retail chains such as Zayre, Ames, King's, Rich's, Bradlees, Caldor, Filene's and many others go out of business. Most of them had hundreds of stores. There have also been many national chains which couldn't survive.
There are very few "mom and pop" music stores in my area. The ones that remain, basically follow the Guitar Center formula by stocking beginner instruments and little of anything else. There are 5 stores within an hour of my house and on any given day, you would be lucky to find 10 basses and 9 of them will be in the $300 to $500 range. On the rare occasion that they have something decent, they over price them. One local chain had 3 stores and now has one. The closest GC to me is 30 minutes away. The closest mom and pop is about 25 minutes. There are 3 GC stores within an hour drive. On any given day, they might have 30 basses. 75% of which will be MIM, Squiers, or entry level Ibanez. It's rate that they have an MIA Fender, MM or anything for the buyer who is interested in buying a higher quality instrument. The same is true on the guitar wall. Hundreds of guitars, most of which are Epiphone and MIM Fender.
The internet has changed everything. People no longer have to go to stores buy anything. Why pay the overhead of a lease, insurance, payroll, taxes etc, when you can warehouse everything and sell it online? I suspect that GC will close stores and the corporate focus will be mainly on Musician's Friend and Music 123 to sell instruments.