Someone else on this forum summed up the difference like this:
MIM - made in Mexico by Mexicans
MIA - made in Los Angeles by Mexicans
So true.
MIA, slightly better components.
I guess you'd have to have a golden set of ears and a real sensitive touch to hear and feel the difference in real-world applications. I don't notice it that much, especially in the mix. But that's just me, we're all different.
Anyone remember the EB MusicMan S.U.B.? Sometimes, the difference in price points is a little slimmer than you'd expect; I think that's the case with the contemporary MIM and MIA Fenders.
I will readily admit, in a world where so much is made in other countries so suddenly like we've experienced here, there is a sense of pride in owning a USA-made product.