I have the SG2100 motor on my 30" dish, and I was wondering how durable this thing is. I just installed it a few months ago, and it seems to be working great. I was wondering how long these motors usually last. Last winter, my antenna rotator froze up and wouldn't work until the spring when it unthawed. That's why I was concerned about putting a motor on my dish. Will using it too much cause it to wear out?