The temperature to which you are referring is called the glass transformation temperature. This is the temperature range at which glass changes from exhibiting solid characteristics to exhibiting liquid characteristics.
It looks like HughesNet is trying their best to keep pace with new competition from Verizon's fixed LTE service Home Fusion, which offers users service in $60 (10 GB cap), $90 (20 GB cap) and $120 (30 GB plan) flavors.
If you plan to connect a lot of devices to the internet, try to choose a plan with higher download speeds. HughesNet offers speeds up to 15 Mbps, while Exede advertises speeds as fast as 25 Mbps.