Lovely bike built with quality components; like Brembo Radial Brakes, Ohlins Gold Forks etc. Those alone would be a fair chunk of the price. (Though not the forks on this bike, a pair of Ohlins FGR300 forks would set you back around £10,500)
As for whether there is a commercial market, then that's another question.
As for Triumph; they have done well. I own a Bonneville; nice bike, well put together, but built to a price.
The Norton is lovely and if I was younger, I could have been tempted. But then, if I was younger, I could also have been temped by a Panigale, or an MV.