Re: Would you start/own/manage a guitar company?
It's all about marketing and brand building, guitars are pretty much of a muchness, newer brands like Chapman or Solar guitars are built on the backs of 'founder' Youtubers, in both cases the actual guitars are really just 'sausages' from the the same sausage factory in Indonesia.
Traditional luthiers who specialise in low-volume high quality product will always find a niche but I suspect it's getting harder for them to expand in such a saturated market, companies who started this way like Suhr or PRS have taken a VERY long time to get as big as they are.
There is precious little innovation because the electric guitar is a mature technology rather like the bicycle, some companies like Aristides or Vigier have made a name by exploiting advances in materials technology but the R&D costs are difficult to fund and recoup because so much of the potential customer base are technophobe Luddites wedded to tradition.
The golden era is gone, even monster companies like Gibson and Fender can't make money like they used to and I imagine Ibanez is having a hard time holding position due to market dilution.
If you want to work twice as hard for half the pay then by all means start a guitar company, so if you want to be millionaire, you'll have to put two million in.