I tried that 'buy from a man on the street' thing a couple of times. Young, wasn't spending much anyway. I was fairly experienced at spotting the easy problems.

I tried that 'buy from a man on the street' thing a couple of times. Young, wasn't spending much anyway. I was fairly experienced at spotting the easy problems. Both times I bought someone else's well-hidden problem. One lasted a year, one a month. Friends, then dealers (with a warranty).