I'd trade those DW drums in ONE SECOND for that Vistalite kit. No doubt.
I'm sure the tone of the DW drums is MUCH more modern and impressive...And I never really was crazy about the way Vistalites sounded either....BUT, I'd trade in favor of that Vistalite kit in a second as an investment (if it's as nice as it appears to be). You can ALWAYS find DW drums (now, or for the next ten billion years into the future -due to the fact that there are SO many of them out there!) But a matching RED Vistalite kit WITH the snare drum? No contest, in my mind.
But if you don't feel right about trading, then go with your gut. No one wants to be unhappy!