The same question could be asked of any activity on which you spend/waste/enjoy your disposable income. How much have you spent on holidays? sports? drinking? cars? etc. As long as you don't spend more than you can afford, then that is your choice. The extreme alternative is to absolutely minimise your outgoings and die with as much money as possible to leave to other people (or the government) to spend for you.
I think this old joke captures the issue:
A woman asks a man - "do you drink beer?"
Man: Yeah.
Woman: How many beers a day?
Man: Usually about 3.
Woman: How much do you pay per beer?
Man: $5.00, including the tip.
Woman: And how long have you been drinking?
Man: About 20 years, I suppose.
Woman: So a beer costs $5 and you have 3 beers a day which puts your spending each month at $450. In one year, it would be approximately $5400 …correct?
Man: Correct.
Woman: If in 1 year you spend $5400, not accounting for inflation, the past 20 years puts your spending at $108,000, correct?
Man: Correct.
Woman: Do you know that if you didn't drink so much beer, that money could have been put in a step-up interest savings account and after accounting for compound interest for the past 20 years, you could have now bought a Ferrari?
Man: Do you drink beer?
Woman: No.
Man: What color is your Ferrari?
