stick with pioneer.
on a serious note, its difficult to assess your situation.
do you want to
- go completely separates and hit the pre/pro configuration? if so, what adjustments would you want to work with, and whats the budget for it?
- just get a new AVR to replace your current one
- use the money you will make from selling the pioneer to put towards the new AVR/Prepro or are you using that as 'additional' funding for it?
For what its worth, upgraditis is a painful process, and i completely understand where your coming from.
For what its worth, have you tried to listen to Dynaudios?