No. For some maybe, but their upcharge is the price of making something in the USA, supporting a dealer network. To compare, Benchmark amps are likely about the cheapest anyone in the USA can get away with, and still sell a quality product.
I have personal issues with some of Mac's obviously idiotic marketing decisions (thousand dollar boxes that don't do anything, green LED tube sockets and so forth), but a Mac amp will always be worth owning, long term.
Let's be honest. USA manufacturing is never going to be cheap. But that is what prospective buyers are paying for. From a kind of related industry, recently Phil McKnight of Badlands Guitars stated up front that a one thousand dollar Asian made Schecter will be as good, QC-wise, as his three thousand dollar OEM California guitar. But that's not what he's selling. In contrast, a handmade in the USA Suhr guitar begins at about four large. So in a way, Phil is selling at 'bargain' prices. Back to audio, McIntosh is a hell of a lot cheaper than a USA Boulder amplifier. And I don't really understand how Benchmark can do it, at their 'moderate' pricing. But they've been able to more or less keep the price down.
McIntosh has, by the way, always been expensive, compared to whatever else you could buy.