The issue is cost. According to the iPS Cell Research Foundation of Kyoto University, which stores and supplies cells, it costs about ¥40 million JPY (about $370,000 USD) to produce iPS cells from the blood of one healthy person.
It then costs between ¥60 million and ¥100 million JPY ($550,000 to about $1 million USD) to transform these into various types of cells for transplantation into one person.
This high cost arises because work is done completely by hand and requires an enormous amount of time. The foundation is hurrying to automate and streamline the production process and hopes to reduce the cost of the entire process from creation to transformation to about ¥3 million JPY ($28,000 USD) by 2025.