According to you, what is a fair price to pay for an IBM Model M 1391401? I know it's a weird question, but I thought I would give it a shot anyway. Now that I know that I cannot get my Customizer 104 to feel exactly the same way as when I got it, I feel the need the replace it. This is kind of strange. I was not using this keyboard much. In fact, I had not used it in a long time. However, I feel as if my collection is not complete without a working buckling spring keyboard. I am having a hard time explaining this, for if I do buy one, it may not get much use either.