Not only are they impractical and expensive, the upkeep can be costly, and cars quickly depreciate!
Invest! In multiple different areas. Diversify so that you aren't reliant on just one source.
You can upgrade your life, but be intentional about how you do so. Don't copy others. Instead, upgrade areas that really help you save time and enhance your life.
One-time use items can become expensive over time. Instead, invest in reusables. They are better for the environment, and for your pocket!
Take all the paid time off you can. It's free money for time spent with family & friends. Which is priceless.