Las Vegas has already achieved 97% storage supply for its needs - a city that barely sleeps at night.
Again, where is your evidence that it is not going to improve across the board, and will all fail?
"It's not all happening right now," is not even close to a convincing answer. If that was the reason to exclude any technology, there'd be none.
And it's an especially ironic answer given that it takes up to 20 years to commission a nuclear power plant. And they are down for scheduled maintenance for up to a month a year, etc.
Business travel elasticity has traditionally been around 0.4, meaning business travellers will tolerate higher fees with only a small drop in demand. But there would still be a drop.
What no one has mentioned here so far is that the $250 additional visa fee is refundable. But it's not automatically refunded. You have apply for it after meeting some basic conditions. So for businesses, it's really a much smaller administrative cost.
So far the process for applying for the refund hasn't been established. So it's all a bit of a hot mess still.