These tissues simply are not transplanted because good preservation technologies do not exist. Tissue-engineering is BIG business and will help millions of people with horrible burns, missing ears and other seriously damaged peripheral tissues. Some companies have started to ship product already which will alleviate suffering from burns so profoundly there are no words to describe it. All on the same calorie intake. The development of cryoprotectants that allow dry ice storage of sperm would revolutionize the quality of life in countries where high-tech LN2 freezing, storage and transport of sperm are not possible.
Dry ice is, by contrast, cheap and easy to make and transport.
The point I'm making here is that the way to maximize transplantation AND improve the number of people being cryopreserved is to improve the technology through research. And we are not talking theoretical research, but rather appllied research with direct technological application. No such thing. But, I do believe based on considerable prior experience that each one of these advances brings a new and higer quality cohort of people into cryonics. Already, cryonics groups have a disproportionate numbers of physicians as members.