Privatair operates a completely different model from Eos for the reasons already stated.
Eos is offering nothing new just more of the same - luxury service for slightly less than the big guys but with no FFP, frequency and little service back-up. At best they will be competing with the LHR carriers for a slice of a lucrative but small market and one which is conditioned to preferring wide-bodied aircraft.
The clever guys in this game will realise that there are some cost sensitive business travellers working for corporates as well as a huge number of directors of small businesses (like myself) who would be happy to pay £800-1200 for some luxury but not £2500-3000.
We are happy to lose the FFP, the frequency and the flat-beds (after-all are you really telling me you can get a good-night's sleep on a 6hr JFK-LON sector?) in return for a lower fare.
In addition there are a growing number of affluent leisure travellers (especially in the SE) which may include those recently retired or younger folk in successful careers who may want the same.
The really savvy operator would include a premium economy class with return fares in the region of £300-600 to tap into the leisure end of the market.
This is the least risky model for a new premium service start-up and NOT what Eos is doing!