D-Jam, everything you said seems pretty accurate about the USA clubbing scene, but the UK scene is slightly different.
Bottle service isn’t really a thing in your average club, but drink prices, due to tax hikes, have increased rapidly in the last 10-15 years, whilst supermarkets sell alcohol at a loss to attract customers into their stores to make profit on other products. People would rather drink at home.
There was also a smoking ban put in place in 2007. That changed the whole industry. People don’t want to go outside when it rains and is freezing for 48 weeks a year. People would rather smoke at home.
I would also suggest that the whole dance/club drug culture has changed, and Ibiza is only a 2 hour flight away.