To folkie:
Actually, I priced out the kit, and it is all very fair...
Router is normally $250 to $300
Amp is normally $300
Antenna is at least $100
The kit also comes with both wall and auto chargers (if you get the pieces individually, they only come with wall chargers) so I figured that must be worth another $50
The kit also comes with extra cabling $20
And a 3-way mount $20
That figures to be $790...oh...now let's factor in shipping for each item separately...wich would be from $70 to $100...so again, having it all in one kit is nice.
So I figure when I added it all up, it seems pretty darn fair what they charged. Also, you can't beat the simplicity of the kit. They made it very easy for me (all the instructions you need are on the inside label of the box...no configuring required, just plug it in)...at the same time, they saved me a lot of $$$$ in time researching this, as they have done it all for me.
We use Sprint as the backbone ($59.99 for unlimited per month). We started out using free WiFi, but had a security breach, which prompted the need for a new solution...which led us to WiFi In Motion. I have to say, it is pretty cool for my wife to be on her laptop checking in on real estate transactions, banking, upcoming restaurants, weather, etc. and the kids can be in the back on their laptop. We have also become a hit at the RV parks because we share our WiFi connection (just make sure you aren't browsing any secure info like banking when you share).
I will let you know how it goes!