Here's a real life story for you....my cousin inherited a significant amount of money in her mid 20's. Up until then she had worked, and lived a comfortable but fairly modest life. She was not in debt, and lived responsibly within her financial means.
Then she inherited a life-changing amount of money. She quit her job, bought a very expensive 2 seater German sports car, bought various pieces of diamond jewelry, did a beautiful addition on her house that cost more than the house itself, bought a painting she saw on the cover of an interior design magazine, commissioned a nationally known artist to paint a mural on the wall of her bathroom, had a boob job, bought herself a few 6 figure handbags from designer shops, bought quite a few designer clothes/shoes, took a first class trip to Australia/New Zealand/Bali, etc, etc, etc.
Did she have fun? Definitely. Did she waste alot of money? Depends on how you define "waste". Some of it could be considered an investment. Now she's 10 years older and has one child with another on the way. Her priorities are certainly VERY different now.....and the money is virtually gone. I don't know if she regrets it.....I wonder.