I've been to the stadium though so I'm not sure what you're on about and even if I didn't what does that have to do with the price of fish?
I've never been to the a Superbowl match I'm pretty fucking sure the prices for refreshments and catering are going to be pretty fucking expensive because of the venue and the occasion.
I didn't say the stadium was a Michelin star service

, you clearly didn't understand the analogy...The Tottenham Hotspur stadium is an elite venue with elite infrastructure/service and top catering hence why the drink prices will be amongst the most expensive...this is what the extra £2 is paying for.
Thinking that the prices of pints are gonna be the same as pub prices is just delusional, keep off the happy pills.