Rocky Nook - Sony A7 III pocket guide

Thank you pxdxa for this serie, but I have to ask... Do you own all these camera bodies? I am getting this series because I am curious about some of the functionality and interfaces, because the rich used market in Japan (great shops where I can handle these and these books will let me check them out without getting the clerk involved and dealing with a sales spiel), and because some friends who own some models. Are you a collector?