So, the point, if it plays well, whether or not it's a MIM or American, then no big issue with the place of manufacture. A good guitar is a good guitar. Sure, the may be slight workmanship differences and perhaps a few materials that are of better quality with the American but not so much that it really affect the enjoyment of playing.
Factoring the fiddling factor that all guitar players eventually, a few minor adjustments comes with the territory anyway.