If I had more time on my hands I would convince and help my nephew to CNC such
a block at his mechanical engineering campus before he transfers to Robotics.
Whatever you want to stick up your pie hole is your issue.
Mark my words the A series will become rare in our lifetime.

edit: Thanks for the input on cost breakdown, there is a place in the state
that does billet blocks for cheaper. Im not saying its affordable for every1
but I remember the same thing when i first started using Apples, Silicon Graphics workstations and color laser printers. Who would have thought a 150,000aud a4 color
printer could be bought so easily now for so cheap?
3d is not comparable to 2d but who knows what lays around the corner?