41 Programs for 7470 Plotter - Why so few?

[hth]

I can understand that these are not so common. HP-IL and its devices were expensive back in the eighties. I could not afford anything like that. I recon that people who got HP-IL focused on getting the tape drive and printer, and neither were cheap. After paying for that I do not think many private people would go the plotter also.

Plotters were more likely bought by companies and the ones I saw during that era were hooked up to computers, not small HP-IL based devices.

In any case, it has always been an interesting device and sounds like a fun project to look into, should some time present itself in some future. In the mean time I like to gather some information, so just a few questions.

Is there a suitable font available that matches the one used by 7470?

Are there any "useful" applications for it, or perhaps a better phrase is "killer apps"?
(and I do not count making bar codes as a killer app today)