I wondered if this would come up because I think for the first time ever there is a pscan on ebay right now.
If someone does buy this then they can download and install the software and follow these instructions:-
https://pscan.uk/install/
The new owner can simply remove the previous owners PCs and add their own in, and they can do this themselves with no intervention from me. If this is needed the software will prompt you and it's very easy to do.
Also the new owner will receive the exact same technical support from us as the original owner. If something goes wrong we can sort it out.
The only thing is that as this is used and I think about two years old there isn't a hardware warranty anymore. That's the only risk (like anything) with buying used. That said our failure rate has been extremely low. We have had a couple of returns with physically damaged units but so far I have always been able to repair them.