JHarris,
I DID just mention it in the CYA category. The fact that I am a professional photographer, and that I've found out about companies illegally copying MY work, has nothing to do with my mentioning it. Of course, the fact that I DID find out about the copying of my work, and was able to then demand compensation, is reason to believe that Isuzu might find out. The fact that we've been posting in a public special interest forum also makes it likely that others are reading these threads.
Your point #2, about Isuzu not caring, is probably true. Big company, not producing VXs anymore, probably just giving us a "pass", etc...all true.
They're also not losing any income over it. No big deal.
But please, let's be frank about the fact that copying a poster and selling it for $30 is indeed copyright infringement. I've also heard REALLY strong arguments for illegally downloading MP3s from the internet, but...um...it's illegal. It does not fall under the provision of "fair use". After 50 years, it may be a different story, because I believe that's when the copyright will expire (unless renewed).
So, I just needed to make people aware: I do not care one way or the other about printing and selling old Isuzu posters. I'm not up on a soapbox about it. But the copying, printing and selling WILL technically be copyright infringement. A tiny, unimportant, negligible, off-the-radar bit, of course...no harm, no foul, perhaps.
I mentioned it because there is the tiniest chance that the OP might not have known about the infinitesmal, almost non-existent risk. Or that potential buyers might have a tiny ethical compunction against engaging in the transaction if they knew that it was technically illegal. Like NBC says, "The more you know..."
...although NBC may have trademarked that quote, so now I'M busted....