First the radios used are often much more functional and rugged for general use than a cell phone and besides the initial purchase price and the cost of keeping up the batteries, they are less expensive than a cell phone. When cells won't work, your short range radios probably still will.
The MURS system allows civilian users to have a radio network that does not require any special certifications or licenses to get. There is little wonder to the fact that there are a lot of choices for radios.
Backdoor Survival has compiled this list of MURS radios in a variety of price ranges. and some things that are helpful when getting started in the world of radio communications.
Frequencies Dedicated to MURS
151.820 MHz (11.25 kHz)
151.880 MHz (11.25 kHz)
151.940 MHz (11.25 kHz)
154.570 MHz (20.00 kHz)
154.600 MHz (20.00 kHz)