Thank you, all good ideas. My only complaint about the tablets is that it is generally a pain in the a** to fit anywhere if you are eating. The premium cabin could always have in seat IFE with the main cabin renting tablets. As you say it is much cheaper to maintain. LAS might make a good focus city with something like SJC a base for international operations to Asia and the South Pacific. Possibly limited international service from LAS. Perhaps PDX has some potential for international service.
As far as in seat entertainment goes, I found this on price which indicates that for a new airline it would be far easier to rent out tablets or make pax BYOT:
"The constraints are largely financial. Outfitting a typical wide-body plane with seat-back screens can cost $3 million or more per plane, airline executives and consultants say.
Emirates Airline, for example, spends an average of $15,000 per seat on embedded screens. For an Airbus A380 with 517 seats, the total cost to install seat-back monitors would be approximately $7.8 million. And that doesn't include the content."