Comicdom is correct, the mifi works off cell towers - same as your cellphone.
Mifi is a waste I think. But hey, can't stop the needing I guess lol
If you live where I do Mifi, tethering your cell phone to your computer, Hughes net, or dial up are your options.
No cable, no fiber optic, no DSL so which would you choose?
Seriously we only had cell tethering for the last 3 or 4 years and the recent cap until now was 5 gb unless you wanted to pay $199 or more for the 10GB cap. Hughes net only allowed me 385 MB of download a day( their so called Fair access policy or FAP) and then they would throttle me down to slower than dial up. To make things worse they over sold the bandwidth so many times unless very late at night we were slower than dial up anyway. Try to run your Ipad or computer on that!
I have been using cell phones since the 80's and do travel at times. I have been all across this country and I can tell you first hand Verizon has the best coverage of all the carriers I have tried. A&T&T can claim what they want but its only true if you live in an area where they can provide the service they advertise and they do not talk about reliability. Sprint is the most reliable and good pricing compared to others but they just do not have the coverage area. I will not even talk about the limited coverage of T-Mobile. So over all for the best pricing, reliability, service, and coverage Verizon is the answer for me. I also tested different GPS services but that is another subject completely(LOL).
So if you think Mifi is a waste, you probably live in a good coverage area and haven't experienced what many of us who live in rural area's and travel across the country put up with. Great for you but bad for us. If you doubt this just surf the net for complaints against Hughes Net (formally Direcway) and read the horror stories.
Personally I will and use my IPad and MiFi while at home and on the road until Fios or something better comes along. Until it does MiFi is the best solution and so far it works fabulously.
Jason