There was an infamous post decades ago on Rec.Autos:

"Hey I just bought a Ford Probe. Does anyone know anything about these cars? Are they any good?" You can imagine the nature of the 370+ replies.

Frankly...buying a $20.00 razor blind, is, well, not much of a risk. It's just fun, and someone who does it is not stupid--just bored maybe.

Everyone has a different standard.

When my yacht was hauled out, a guy was asking me how much I paid for it. I thought I paid a lot. I told him how much.

He was flabbergasted. I said: "Wow, I guess I paid too much, eh?"
He replied: "No, I have that much money in my pocket right now!"

Have fun, buy razors, get burned occasionally. It makes the bargains feel sweeter!