The evolution of mobile broadbands has been huge. A few years ago I had mobile broadband which usually reached 5-8 Mbps download and slightly lower upload speeds, now I can get a 150Mbps no data-cap for less than 20 euros a month, USB-modem included. There's fierce competition between the operators and prices are going down all the time. That's less than I'm paying for my 30MBps cable and way less than 100/100Mbps fibre connection which is 72 euros a month. The downsides of mobile broadband are high ping when gaming and the speed drops to 42 or 21 Mpbs when leaving the town. Also those are theoretical maximums.
I live in an area with a population density of 3,27/km2 or 8,2/sq mile(?) (Less than Canada) and we're building new fibre optic connections even in small towns of 2 500 people. Not every rural area is as lucky. Many rural areas are stuck with mobile broadband which luckily reaches speeds of 21 Mbps in every inhabitated part of the country. In many rural areas ISPs aren't bothering building high speed land connections even with government subsidies because there's no profit to be made. Understandable.