Because they are (virtually) ALL total BS bait and switch RIPOFF ads honey.  

Most of the time those girls don't exist.  They sucker you to sign up for something then charge your credit card.

If you want quality web cam, go to ifriends, or camstreams, etc.

The real thing is better anyway - but if you can't have it, go to myweb site and download a video!

Giggle,
TS Jamie