But my guess is that Meridian's v4 upgrade policy has changed since CES.
I think you are right or that the press release was simply wrong (maybe there was a rush to get everything ready for CES?).
The only question is whether the differences merit the outlay. Meridian clearly thinks they do, but for the customer it is an entirely personal question, related to their system, circumstances, desires etc.
While the decision remains personal, we need at least a baseline of critical examination to contextualize our personal wishes, and that can only be provided when someone with expertise gets the opportunity to give the v.6 a really serious inspection and audition.
I think this is true, but it does boil down to:
(a) Price not a factor, simply wanting to own the very best, and trusting Meridian.
(b) Price a factor, and therefore needing to know if *you* will notice any difference in *your* system.