First class is hugely more expensive than economy. I'm proposing a new middle tier.
I just did a search for a Belfast > New York flight next month.
Economy: £532
Business: £2,636
First class: £6,809
If they added a section with increased space for passengers (no champagne or other extras) and charged £800-1000 for it I'd pay and I'm not someone with money to throw around - that's how uncomfortable I find flying. All I'm asking for is an extra couple feet spacing between seats.