Would you sell your used panties for money?

I just happened to be bored and looking through Craigslist and came across an add for used panties every other week. He's willing to pay $20.00 for them each time. Now this isn't the first time I've seen or heard about this particular fetish, but it got me thinking. How many women would do this to make a few bucks?

Can't he get his girlfriend to wear a pair for him and pay her some money, or is he so weird that he doesn't want a girlfriend he just wants some strange woman's panties to sniff?