Money works like RAM:
More RAM than the running processes require will not make your computer any faster, but if you run out of RAM it will make it slower.
To continue - Having more RAM also makes you more likely to run programs you don't need, or don't care about. Limiting the RAM left available for the applications you do.
It's easier to kill processes though than drains on your income.
Either the analogy isn't working, or more money (or RAM) has a good chance of letting me do more things that I value. I think the 2nd.
Wisdom, aging, getting to know yourself. I sure love a $300 meal, but eating out 5 times a week isn't going to make me any happier than going to that place once a month and cooking on my own the rest of the time; maybe ordering a cheap dish at my favorite Chinese place.
If you enjoy looking good and your wardrobe already has everything you could reasonably wear on a day-to-day basis and some special events, the chances that an additional piece of clothing will make a marked difference on your happiness is extremely low.
If you have sex with your lover as much as you could possibly want, more sex will not increase your quality of life; most likely it will be a negative.
There's a point where we just saturate on the hedonistic aspects of life, even the ones with supposed higher purposes.