It is widely accepted to buy certain things used. Most people have a used car as their first mode of transportation. Who hasn't bought something used off of Craigslist or eBay a time or two? I've picked up a piece of used furniture from Goodwill a time or two, especially in my college days.
There are many things, however, that you simply SHOULD NOT buy used. No one wants used underwear. I wouldn't buy a used hair brush. And as this video shows, you should never buy used rubbers.
This video is obviously old, so any context for it is long gone, but what the hell? The thought of meeting another man on a country road to buy a used condom is hilarious!