I do already have the three 1/48 heads... VF-1S Fokker, VF-1A Hikaru w/fast pack, VF-1J Hikaru w/GBP Armor and the VF-1A Canon Fodder. Thinking of getting next are the 1/60 valks... My next in-line are, YF-19, VF-0A and VF-0S. Are they worth getting? I know the YF-19 is, but how about the the Zero line are they worth it?