"you're not spending $1600 on a keyboard to improve your"
Well, it is $1600 for a keyboard that you are using 8h a day for the next five years vs a $5 Latte that you are enjoying the next 4 minutes. You do the math.
The difference being made that people are willing to spend big on short term things but are stingy on things that they use a lot. Be it a keyboard, shoes, bed sheets or whatever.
I just ordered a "new" keyboard. IBM Model M, space saving version. With below USD 200 a steal!