By the way, in case anybody is interested, the last time I requested a list of QPC owners from Jochen was in 2005 and there were 409 registered users back then. Not sure how many more were added in the following 8 years or so it was available, but most sales were QPCPrint in the end, usually for non-QL people.
The highest earning quarter was Q4/1996 after the release of QPC1, clocking in at a bit over 4000 DM. If I remember correctly a license cost 250DM back then, of which 80 or so stayed with me, the rest was taxes, the SMSQ/E license and Jochen's fee. Being an ordinary pupil at the time this was still a shitload of money. Never came close again, but it was still plenty enough so I never had to do any non-programming jobs in my life (except the year of civil service to avoid the military, which was great) and still could travel several times to the US shows and even many more times to England without any loss. Thanks
I'm 37 years now, QPC1 was released around my 18th birthday, so QPC has stayed with me well over halve my life.
Cheers, Marcel