I just bought a car in cash. My friend says it is always stupid to buy things in cash. Is that true?
Another option was a loan, if <= 2%. You could have negotiated the price of the car, since dealerships get a kickback from the bank. You could have invested the cash in a CD and made money on the Delta % ( rates are around 2.5%).
You also have stocks etc, which are higher risk. So many options. You left money on the table.