I read a thread a few days ago asking the question of what TF line would you be willing to give up. I thought the opposite question would be interesting. I personally would not be willing to give up my G1, G2, Machine Wars & Classics (1.0 & 2.0) figs what so ever. I am a child of the eighties so G1 defines Transformers for me and has the closest connection for me. If I could keep more of my collection than that I would want to hold on to my Cybertron & Energon figs. There are some fantastic molds in the Energon & Cybertron lines.