http://cgi.ebay.com/Xantrex-Trace-Grid- ... dZViewItem
Looks like Richard is selling one of the Beta UPG units, if your looking to get a UPG this would be probably one of the last chances IMHO
Keep in mind though, this unit has no warranty. Looks like they still can be repaired if need be by Xantrex, but it would be on your dime not Xantrex when that time may come
To my knowledge, 9 of the 10 beta UPG units are still running, 3.5 years and going, only one has failed due to a direct lighting hit
, so there is good value in these UPG units