Just the cost of that much RAM alone priced it out of the home market.

At introduction, a Xerox Alto would cost $100,000 to build in today's dollars according to Wikipedia, so prices were trending down at the time, but were still enormous.

Because they would have been operating at a loss. Unless they could magic down the cost of manufacturing their products, there's no way to magic down the price they had to charge customers.

NeXT operated at a loss for most of its life anyway, eventually got out of the hardware business entirely.

See https://computerhistory.org/blog/next-steve-jobs-dot-com-ipo...