I have to honestly say that I prefer high quality guitars made in the country where the brand first originated or where the company resides. This is, of course, with caveat that I can afford such instruments, but I am aware that I ultimately try to purchase according to this premise. And I always try to support American companies, if possible, esp. smaller ones.
What can I say, though? I prefer my flamenco guitar to be Spanish, my Ibanez shredder or GB10 to be Japanese, my Hofner bass to be German, and my Guilds to be American. There are exceptions, and I don't always abide by this, but in some inexplicable way, it feels like an instrument is a truer representation of the quality for which a company wants to be known.
I certainly am not at all against owning well-made gear, esp. gear built to a specific price point for certain markets. After all, I think young players have access to a world of instruments and gadgetry that were untouchable (and nonexistent) when we were kids. My kid's Fender bass is Korean and is perfectly suitable, and I'm always lusting after Japanese Fender models that aren't even made in the U.S. I also know it's just a matter of time before I buy a NS M-75, Bluesbird, or Starfire VI.
I sincerely think this is simply a false construct in my mind because I've played many fine instruments made in various countries. I'm constantly picking up Mexican Fenders that are so tempting, however, if I bought one, I realize I would always be on the lookout for an American example to "upgrade." I do know better, but I'm fully aware that I'm a product of my environment and admittedly susceptible to the sales propaganda.