People making more than $300k/yr TC aren’t exactly a small minority on HN. While the VIP service at Heathrow is unusually expensive compared to other airports, it’s really not a crazy price to avoid some very stressful hours.
2750 pound? Maybe if you made $3 million a year.
Heathrow doesn't serve only HN users, nor only the wealthy, though. I'd wager that £2750 plus VAT is hardly "relatively little money" for the average person traveling through Heathrow.
I think most people would balk at the price. If it was 30 quid it would be reasonable.