They were pushed to go for efficiency by orbital mechanics. Florida is pretty much on the equator, where you get a very useful gain from the surface speed of the earth, making it easier to achieve orbit. The USSR had no such luxury, they needed the extra efficiency to just make orbit. They also have a lot of territory at high latitudes, so a lot of the launches are to a polar orbit, and into an extreme elliptical one as well, so that they can get reliable coverage, although they had to have steerable antennas to track the satellites, but could get reliable comms over the whole country from a relatively low number of satellites in non geosynchronous orbits.orbits were such that they could make use of nearly 90 minutes of the satellite in a 120 minute orbit.