Originally Posted by bhatnasx
Check out the Washington DC Craigslist - people are always trading metro cards for pretty much anything. I've got no idea how they get them (maybe they are Metro employees stealing them?) but they're always available.
THey are probably Federal Employees who get a certain amount free as a benefit each month and they probably get more than they can use - I think its technically illegal to resell them, but that is my guess of the source.