Several years ago before wi fi was available hardly anyhwere let alone free, I came across some lit on a wi fi machine(very similar to an ATM) from some co. I thought maybe it was something worth checking out and was in touch with the co,, initially the machine cost somewhere around 12K and I had to scout my own locations and responsible for getting it "hot". It really did sound intriguing because the net hadn't been arund that awful long, cell phones were still on 2G and 3G was a thing that seemed years away.
I decided against it in the end, tech was moving way too quick. I remember they called me back several times and then started dropping the cost of the machines, I think ibn the end it was down to six or eight grand per machine. Didn't take long to figure out that it would've probably been a bad investment.
J