When I got mine more than 6 months ago, I paid $1350 cash from KHAI HIFI in John St Cabramatta.
I've had problems with the machine (FW AUTO69) since the start such as random reboots but I managed to eliminate this by running it without the top cover.
My theory is that heat or electrical properties of the chassis + top cover contribute to instability of an onboard component in the machine
Other fixes I have implemented are
1. Upgrading coax cables to RG6 and F-type - separately feeding the tuners to allow PIP to work
2. Powering it using a THOR power filter - to reduce audio dropouts, clicks and pops
So far with the above it has been working perfectly for many weeks..
My next action is to replace the HDD with a 320Gb SATA drive and resinstall the top cover to see if there will be stability issues.
Best of luck..