I've actually done several installs for customers getting Dishnet only. It really depends on customer service. In some areas, they're telling people that Dishnet is not available, but let's be real folks, it's a satellite based service and they have multiple systems to use to ensure good throughput, if they tell you they can't do it, ask for a supervisor.
It's not cheap, and there's obviously data caps which, once hit, drop you back to speeds lower than or equivalent to dial up. Pricing wise, it's actually cheaper to go with a prepaid hotspot, check walmart for the straight talk hotspot. We use one on vacation and love it.