As Bert said these are copyrighted docs and Honda is keeping them old school to keep them from getting in the public domain. Once they get in the public domain Honda will no longer be able to make money off the sales of these manuals.
I am not sure where you live but FYI, you can not purchase service manuals from Honda in Canada. You have to purchase them in the States, which means higher shipping, exchange rates, duty...
Thanks all. I suspected as much but figured it was worth asking. I have 2 honda snowblowers that I was able to find a digital/scanned copy of the manual online so figured it was worth a shot.