They are not even nearly overpriced.

Go on WHT and read all the reviews on site5. You will see all the horrible reviews that people write on them. Then look at liquidweb.

You simply look at the price tag, you will not get anywhere. Obviously they are not overselling thats why there prices are higher. Look at the price per /kb of bandwidth and then try and look out how much site5 for example are overselling. Secondly look at the quality of the bandwidth.

Good Luck