From a seller on Ebay that sells these units:
"I have sold a few dozen of these systems on eBay, and many more through retail outlets here at home. I've even had one on display (at my friends video game store) for about 10 hours a day for a few months. They are pretty darn reliable, as long as they are treated well. (Not thrown around, etc.
)They are light, which worries some people. But I can assure you that these systems work well and long.
Hope this helps."