I'll call it. Someone will blow one up, there will be a big anti-terrorism backlash, and then they (TPTB) will use that as an excuse to keep us all stuck on the ground.
Air travel was relatively extravagant when it came out too. Same thing with flat screen TVs.
The wealthy fund these ideas until a competitive market springs up around them, and then the price is rapidly brought down, and quality improves so that everyone has access.
The same thing is happening with electric cars. It was I think $100k or so for a Tesla. In 20 years, we'll be able to get a sporty electric car that is 5 times as good, for half of the price.
That is the miracle of capitalism. That is why the socialists drove Trabants and Ladas when capitalists were driving Porsches and Cadillacs.