The answer is a depends slighlty. When using SAT there is a delay in transmission called "latency" this causes sluggish performance. They are also affected by weather, fog and the Sun. Upload speeds are also much slower.
With cable you don't have these issues. They also have plans with different costs that depend on your speed. So you can always upgrade if you need to. The only issue with cable may be if you are in an area with a very high number of subscribers. Still it is better in many ways.
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