Wikipedia says:All members of society are conditioned in childhood to hold the values that the World State idealizes. Constant consumption is the bedrock of stability for the World State; everyone is encouraged to consume the ubiquitous drug, soma. Soma is a mild hallucinogen that makes it possible for everyone to be blissfully oblivious. It has no short-term side effects and induces no hangover; long-term abuse leads to death by respiratory failure.
My first question is "Is a lack of political freedom an excessive price to pay for such pleasure?"
If you have not read Brave New World, or if for some other reason that example does not work for you, I can recall a similar example from a man's stand-up routine. He said in quite colourful language, that he wished that in the future, people should be allowed to lie in baths of protein with a wire running into the brain constantly stimulating sexual pleasure centres. So is this sort of situation something you'd consider desirable?
I won't pre-empt your responses except by saying that your approach to these situation might depend on your conception of utility. If hedonistic pleasures like food, sex and drugs count as utility, then soma and the protein bath sound fairly desirable. That's not necessarily the case for someone who understands utility to mean a deeper wellbeing or satisfaction of preferences.