Once again, guys, there is a middle.
You don’t want to live like a miser, hording cash, never take a vacation or own anything nice, and die with millions of dollars.
You also don’t want to spend like there is no tomorrow (unless maybe you have a terminal diagnosis and a few weeks to live), get to retirement age with no savings an not enough quarters of social security to do anything and end up saying “Welcome to Wal-Mart” when you are 90. Or just have to declare bankruptcy because you are in over your head and can’t dig out.
With the exception of those below or at the poverty line (and probably those slightly above it as well) who really cannot make ends meet, most of us have disposable income after the rent or mortgage (whichever fits your income and lifestyle) is paid, the bus pass or car insurance is taken care of, and you’ve bought groceries or eaten every meal at McD’s off the dollar menu. Once food, shelter, clothing and transportation is taken care of at a minimal level, there should be money left (assuming - again - that you are not at poverty level.)
Financially wise people set a little of that money aside - and that’s what this thread is about. But normal human beings - including the financially wise - also spend that money on things they want - it might be a nicer place to live and better food. It might be an Audi TT Turbo, a 3000 square foot house and a 3 month vacation in France. It depends on what sort of money they have left. If you have enough money to both be financially responsible by setting some aside for emergencies and your future, and you still have enough left for hookers and blow - congrats!
The issue is when you spend everything on hookers and blow and then not only not having set anything aside, you have spent the rent money. And it doesn’t matter if its hookers and blow or something far more useful.
So if it isn’t binary its a sliding scale
Save everything and have no fun = bad
Save something and have some fun and luxuries = good
Don’t save anything and have lots of fun - bad
Don’t save anything and have so much fun that at the end of the month you can’t pay your mortgage or rent = really bad
As for the idea of investing in yourself - certainly that is a worthwhile activity - but its not a financial activity - generally you don’t get ROI on a vacation or a manicare or a bath with a glass of wine - you might on an education. But its a different sort of calculation that with only a few exceptions, isn’t part of a discussion on financial astuteness. Most often, you’ll spend more than you get in the end out of it (sometimes even with education) - financial investments you make because you expect a return on them (you may not always get it, but you don’t make them planning on losing money).