Some people here straight shave for pecuniary value, while others see value in the beauty of certain razors and are less concerned about their price.

I fall somewhere between the 2.

Consider that others are ignorant in the sense that new is new. I qualified as ignorant as when starting I felt I needed a new one and didn't like the concept of a 'used' razor. I quickly departed from such an opinion upon understanding that these are neither cartridge nor replaceable blade razors, and can be 'renewed' in terms of their edge and sterilised besides. However I'd still acquired a couple of new one's (well one being New Old Stock) before coming to terms with the fact that many used and older razors are far cheaper and (subjectively) superior to new.

As Holli said, availability is a huge factor, and condition. I reckon hype also. One guy gets a TI silverwing for eg, and publicises it amongst the forums. It is readily available at many online outlets, so people may buy it subject to a review. It is new, consistent and available at the click of a few buttons.

Additionally, Birnando referred to customs. Would they fall under the category of new razors? If you were less concerned about price and desired particular attributes to be incorporated into a razor's design, be it for ergonomic reasons such as size and thumb notches, or simply 'need' to have an overly large monkey tail; you may request a specialist razor smith to commission a custom for you, as such individual specifications can not be found on a vintage blade. If you were to add up all the money spent on new razors, I bet a fair percentage would go on customs.