Because we bloody well buy them.
Stop it, stop it now! Don't use touts, or websites which look like touts or touts that look like websites, or people on Ebay selling tickets to concerts before they are released or 10 minutes after they are .
If we simply stopped buying from them, then they would cease to exist.
Please try to resist picking on people in forums - it's neither big nor clever and you never know who you'll wake up