I can only afford the 11K for now, so I was running the numbers to see how much more expensive it would be to upgrade the parts later and the answer was surprising.
The 2 differences between them: the KV comes with a 3-zone ride, PDX-6 toms and a PDX-8 floor tom.
So let's see…
PDX-6 are 125$ a piece, so 250$
PDX-8 is 220$
CY13 3-zone is 240$
Total cost of upgrade: 710$
The price difference between the K and the KV is 600$, but here's the thing: by upgrading the K this way, you now have THREE cymbals (2 crash and a ride, there is an extra input for an 2nd crash on the module). Ergo you just got a 2nd crash for 110$ (and I do need 2 crashes).
And of course, for a little extra cash, I could upgrade the snare and floor tom to PDX-100 and use the PDX-8 that came with the kit as a tom (instead of the small PDX-6s).
Makes sense to me, am I missing something?