Been thinking about this - my PC only rocks an AMD R9 270 graphics card. It seems likely the new HMD will - as well as being more expensive - require a more meaty PC to play with. Like I might need a new GPU, or even a new CPU (effectively a new computer). I might be better off with the older model (1.4), which is also much cheaper....
Hmmm.
What is your CPU, I have an i5 2500k at 4.2ghz and hoping that I don't have to upgrade it.