My point was not that they decided to change the business model to be more like other retail stores, but that because of the behavior of buyers, it just does not make sense to stock more expensive instruments in retail music stores.
You completely missed or misread my point then.
My statement is that they grew without even establishing if their growth could be supported by reality. We're now seeing the downside of that unchecked growth.
If 50% of the country was willing to eventually buy an average of, say, 1.5 guitars a piece, that's still a finite number of guitars to sell. It's a lot of guitars, but it is a FINITE number, period. Guitars are durable, unless they are abnormally abused even a 40 or 50 year old instrument just needs a setup, new strings, and maybe new frets and electronics, but that's 1/4 of the new purchase price and would not facilitate a new purchase.
That is a drastic contrast to, say, a t shirt. T shirts wear down, they are not durable. After a certain number of washes they develop holes, and you're off to buy a new shirt at Walmart.
A sane human being or organization would stop trying to expand at a point, as a result.
They haven't. They're hemorrhaging money and are still trying to expand into secondary and tertiary markets because.....uh...reasons?
TL;DR, they're pulling a Walmart. Despite the fact that a huge portion of Walmart's revenue comes from items like groceries, or paper goods, or even clothing, that has a very finite lifespan and need to be repurchased on a regular interval. Even with that as their revenue source, Walmart isn't doing great right now.
So again, they expanded to fast, too far.
Buying out their competition didn't really help here as having 100% of a finite market means all of your lines of business fail when the market hits saturation. It's like they took the Walmart playbook and tried to apply it to music instruments. It reeks of delusional management.