I liked series one a lot more because the armoring was more technic based than series 2's. They did offer a nice change in aesthetics. So I'm with a few others like Chro, for parts, yeah, especially if they don't use that annoying ratcheting system and use the system with ball and socket parts instead, and if they make more technic style attaching armor, weapons and helmets. I liked that some of them could be attached via an axle in the back. I got Vladek's mask specifically for a MOC, only to find out it didn't have that feature, So I was a little annoyed.