i will like to ask why does this pad cost so much ? you would think something so small would not cost so much XD lolz
Time and knowledge of CAD to make the product, distributed prototyping cost, small production run, high quality aluminum, milling costs, anodizing costs, PCB SMD component soldering costs, laser cut stainless steel plate (or aluminum, not sure which it is) and so on. It would be considerably cheaper if it were just the PCB, but a milled aluminum case and laser cut and properly finished plate makes it much pricier.
I couldn't afford one at the time, but, all things considered, it's actually not a bad price for what you're getting. I think it's actually cheaper than some of the other Korean custom keypads you see pop up on here from time to time.