Unlimited's days are limited
The bigger carriers learned their lesson from allowing an unlimited free for all. Now Sprint is the only holdout. But their network is slow as molasses so they really don't have much to worry about, LOL.
Sprint will still disconnect you if they deem that you use too much. Over 5Gb can be too much, doesn't have to be 100s of GB. Their hotspots comes out to about $50/GB overage.
When someone points out how ridiculously low wireless caps are and overage charges all I see is snide "Well don't go over your cap then simple as that " replies. 2-5GB ain't nothing and expect to compete with cable/DSL with their crappy networks.
Moe, I need your advice
See I've got this friend named Joey Joe-Joe... Junior... Shabadoo..