oh yeah, I've already got the 70-200, I was just referring to a 200f2 as a fun project lens, I couldn't justify spending the amount for a new or used one in good shape for the same reasons you mentioned, but I think it'd be a fun project if I could find a really cheap one that needs repairs or something. same thing with the 400, I really don't need a 400 2.8 for anything, but it would be a fun project lens.