I don't even equate this to a full fledged supercar. More a over-hyped car obscenely priced.
It's more a story about a vast amount of Government Grant money spent(ie) someone got rich developing this. Now they need to price it into the stratosphere to justify where the money went. At 320K they'd break even by selling less than 20 of them.
So this is the great value of the 5 million grant. Less than 20 people get a turntable arm and cartridge. More sales if they want to make a profit. Do I envisage $100K turntable owners moving up? Not really. 320K is a different sector. 320K(for now) watch this one spiral in price. I'd be surprised if this thing is a hit. I think they'll sell their 20 because it isn't that big a number to break even. I don't see a 320K product for minimal people as a great use of millions of grant money.
If they really have developed a new standard, watch the Chinese tweak it enough to get around the patents and sell their version for one tenth the price. It might be good but next to no-one will own one so what was the point?

