[Amps] Heath copyright

[Colin Lamb]

"Nobody is denying the societal benefit of copyrights.  What is being
disputed is the societal benefit of eternal copyrights,"

Why is this position different than saying when I build a commercial building with my labor, and rent it out for 25 years, that I have benefitted enough so that it should then revert to public domain, and become a public building?  Is that freedom?  What are the societal benefits of letting someone keep the building he built forever?  If the government takes the building away for the good of the public, how would we feel about that?  

I just looked at the Heath manual website.  It is owned by a former Heath employee.  A SB-220 manual sells for $22, which is less than 25 cents a page.  So, you spend $600 for a SB-220 that you buy without a manual and complain about $22 for a manual?  This is significantly less than the $1 a page you pay to the local government office for a public domain document?  

Colin  K7FM