There is not a software package on the market that you are allowed to re-sell. Period. Ambrosia (or is it Beenox?) owns the software. No one else does. We paid for a license to use it. We do not own it. I know software is re-sold on eBay all the time, but that is illegal. Only Ambrosia/Beenox and their distributors have any legal right to sell this software. The end.
This is the way it is with ALL commercial software.
Read these two articles: Doctrine of First Sale, Softman v Adobe. Once you have read and understood them, it is my sincere hope that you will come to realize that you are mistaken on several points above.
Secondly, Ambrosia's shareware protection system is quite robust enough to handle transfering a copy from one person to another, although obviously there is little to prevent the original owner from continuing to use the software until he or she has to update his or her registration (and can no longer do so.) However, that would require ASW to do work for no compensation, over a product that will not run on modern platforms and was never all that wonderful to begin with. Honestly I have to agree with their ceasing sales of Coldstone - ASW has a reputation for quality, which was not earned by pushing buggy software. (Of course, I'd solve the problem by releasing it as Open Source, but (1) maybe there are some contractual obligations that prevent that, (2) maybe they retain hope that it can be made into a commercially viable product again.)
Thank you and have a nice day, &c.