After much consideration, I have decided to order a PM1236.
I looked very hard at the Grizzly G4003, and was rather enamored by the number of threads it cuts, along with the advantages of the norton gear box and the pre-installed spider.
Ultimately, I decided that I would never need all those extra threading options, as I will be doing barrel installs and maybe some minor fabrication, the rest of the PM1236 preferred package, made it a bit of a no-brainer.
If I ever get good enough to start doing it for money, I'll invest in the Taiwan made machines.