Steve, I've wrestled with this same question myself quite a few times. Well, I'm still partially undecided. I've got five of these guitars (UVMC, DNA, VWH, 90th, DY) and I only play three. I originally bought my 90th as a back up to the VWH. Lately, believe it or not... I've been playing the DY the most.
I have definitely decided to sell the UVMC and I'm thinking about selling the DNA as well. I'm looking at it this way... I don't play the swirls, and I probably never will. Sure, they may go up in value one day. But when?
As for your dilemma... Are you going to play the new acquisition? Or, will it become a collector? Also, is this decision financial? If so, consolidating is not a bad idea.
I personally don't like having two of the same exact guitars. So for me, I would'nt want two VWH's. But if you love your VWH as much as you say you do, a VSBL would be a great choice. I would sell the PGM's.