A few months into DE shaving and I have been whittling down to the razors I really like and work well for me. Right now I am not at a point where I want to keep razors around that I don't like, but I am open to trying new things to really get a sense of what is out there. So far I have kept away from the really expensive old Gillettes. My question is, are the expensive ones (President, Brown Tips, various Old Types) expensive due just to rarity, or are they in a class of their own shave-wise? Obviously, YMMV, but I was wondering if the people buying them are seeking a tremendous shave, or a collector's piece. Now, I cannot imagine there will be a consensus on this, but I was hoping for someone with experience shaving with a rare, expensive razor could weigh in on the actual shaving benefits (basically, are these worth my money if I only am after a good shave?). Thanks in advance!