As always when upgrading old hardware, you are still working with old hardware.
The Vampire is an amazing card, but it's still coupled to the rest of the A600. On the other hand, at least it is a real Amiga still. Also I don't see this CPU core coming to other FPGA Amigas soon.
WinUAE works with your current PC, it is fast, it works at native resolutions. Underneath it all however is still Windows - albeit a far more reasonable Windows than in the past. Considering I thought UAE was pretty good 18 years ago running it on a P2-266, it's going to be more than adequate today!
There's always the middle ground of a Raspberry Pi 2 or Odroid C1+ board running a Linux UAE variant or Aros to consider too, if you just get that distaste about x86 and Windows.
