Prices seem roughly in line with what I'd expect for letterpress (not commenting as to whether it's expensive or not). (cc @maxisnow I hit reply but accidentally deleted your handle)
If you like those cards, you might also like the LatLon notebooks from Analog: http://store.analog.is/products
Notebooks with beautiful maps in the covers using letterpress.
@shapob Probably true, traditional shops will have a library of plates and glyphs they can use to make cards but custom making plates and stuff can get expensive and time consuming quickly.
Prime