I'm not sure what it's worth, but after working on many Piss-ario's, I finally got to work on a Prosignia. I will say this -- the Prosignia is the Business/Commercial line and they are definitely not the same as the Piss-ario!
The one I worked on was extremely well built and ran as smooth as a baby's bottom, it was extremely fast for the CPU in it as well (PII 400MHz if I remember right). The owner wanted more security and stability, so had me up-grade it to W2KPro.
The only way I'd take a Piss-ario into my house is if they took the MoBo and PS out, but left the CPU and the rest inside and gave to me.

I'd throw in a new PS, MoBo, fdisk/format and have a decent machine. But a Prosigna, I'd probably cover the name up and pay for the machine as well.
Point is -- when pricing, don't compare it as a Compaq Piss-ario, it's head and shoulders above them.
Harder