Mandrake was very good at marketing, they did Linux alot if good. Note Proxmox is now €100 per year that is possible even on tight budgets. I wonder how good their support is, at €500 - €1000 per year for remote ssh help that can really be worth it!
If I wanted the ability to submit 3 support tickets per year with a one day turnaround time, that price triples. I could easily justify splitting that cost monthly, but not upfront all at once.
Heh, at first I parsed that as IPC socket.
Now I'm amusing myself thinking about which companies would try to charge for that.