I agree, when r1234yf really rolls out I'll be done too, along with almost everyone else in the DIY area. So far the r1234yf introduction has been a bit of a fiasco. The stuff is very expensive and the German carmakers are now citing safety issues with it. I suspect over the next few years as r1234yf comes in and R-134a gets phased out R-134A is going to get expensive like R-12 did. It might be time to put some R-134a aside to keep our existing vehicles going. I can see a big move to HC refrigerants by DIY folks as R-134a goes away. I don't know much about HC's so I don't know if that will be good or bad. But, I can see pricing is going to drive people that way and the HC producers will be ready to take advantage .
