We have a AT&T mifi hotspot, and the only plan they offer is 5GB @$50 a month and $10 for each GB over the 5. Not to bad , you buy the hotspot outright or have a contract of course it is cheaper with a contract but i bought mine outright because I was not sure how it was going to work out for us and did not want to be locked in for two years but so far it has been ok, we do go over the 5GB a bit when at home but it still cost less than a service at home like we had (COMCAST) and something for when you travel . so far this has worked for us but dont plan on using this plan for anything like netflicks that will cost you in data but it is good for e-mail and some serching on the web.