The problem with pleasure is it quickly stops being pleasurable
Yeah, that's what they want you to believe. That's one of the ways they prevent revolution... I can just see Musk talking to one of his worker bees now "yes, you spent the day in a windowless room with a load of arseholes doing tedious work in front of a screen, being ordered about by a bullyilng idiot and the highlight of your day was a two minute smoke break, and I spent the day - as every day - doing exactly what I wanted whenever I wanted.. reading or fucking, travelling or loungijng by the pool, eating the best food or taking the best drugs etc etc but, I'm so used to it and as a result your day was actually far more rewarding than mine. Oh how I envy you and your honest days work, You should pray that you never end up like me trapped in the shallow emptiness of utter paradise".
OK, I'm kinda joking. Some of what you say is true or at least partly true, money does diminish in value, your second billion is not as good as your first and so on. Pleasure is diminshed by repetition of course... but at the same time, it's still better than almost everything else AND an inventive mind such as yours or mine wouold not get bored and dulled like that. There are so many things I want to do, I really don't think I would just sit by the pool downing martinis and fucking or whatever.