But with opportunity comes challenge. It is a growing industry which offers many avenues of choice, but companies must not act hastily, because it's easy to get burnt. Currently, there are few demands that could not be accommodated by increasing land lines or using cell networks. However, considering the demand, they do seem the most practical. You cannot use them while you travel.
Cell networks are also limited in the mobility area.
While it is true you can travel, there are many places which have no cell coverage. For example, if you want communication on a ship out in the ocean, you won't accomplish this with cell or land lines. Satellite networks can also provide a greater bandwidth. Satellite networks show the greatest promise for the future. With increasing bandwidth and mobility demands on the horizon, satellites are the logical option.