lol-price for installing software and strapping a webui if you ask me.
the original plug is $99.A wifi stick is $20 (their plug is $520).
They're not trying to fool anyone by saying that they've made a magical new product. Its straightforward software, as a service, in a can.
Then there is dealing with the mindset that a cheap approach to security is not going to be as good; it's not an area people like to cut corners.
Have you done a lot of large scale corporate pen tests? I used to do a lot of pentest/wireless audits for IBM. Sure I could sit in the parking lot of Dr. Bobs Dermatology's practice and maintain a decent signal strength to his wireless network. But what are you going to do in downtown Manhattan when the client is on the 25th-35th floors of a building in the financial district? Does your pay as you go phone fit into your classy corporate looking pelican box? How does that pelican box look now that there is a second cord running out of it to charge the pay as you go phone?
Now do you see the usefulness of built in 3G?
PS: I just noticed that you have posted your description twice now. Is it $80 or $100?