Robot vaccuum cleaners are the same, we went from irobot being the best to being eclipsed by companies like Roborock or Dreame (although given privacy issues, I'd get something can be rooted)
Ironically, most of the ADCs on the market are equalled or beat out by a $10 Apple USB-C-to-3.5mm dongle smaller than my pinkie finger, and the measurements prove it.
But, I did read it as: they should have diversified. I know from first hand experience that this is really expensive to do for a company. And, only possible when you can reduce costs in other ways, which China obviously has an advantage in the manufacturing realm.
I think what I'm trying to say is that instead of diversifying, maybe their best bet is to make a really high quality product that appeals to a different category of people than Best Buy consumers. I have no evidence to prove this feeling though. It is just what I aspire to buy when I do buy things.
That said, I am just an sample of one and the only reason why I bought it because my business need seems more pressing than waiting for Prusa to deliver the MMU3 kits.
I did have an issue with one of them having a warped bed, which caused bad adhesion on several prints, but I contacted support, they walked me through some debugging, then just sent me a new one. It seems that early on they had a manufacturer that was putting out warped beds that weren't caught in QC, but they've dropped the manufacturer. Maybe you got one of these warped beds as well? You can diagnose that with a straightedge, a ruler, and a flashlight.
I will be replacing it eventually once there's a viable open source product or make enough money to fund open hardware projects.
It's hard to say what's the norm without more data.