I would not trade the Virgo's. We spend far too much time "upgrading" and in that search for that one minute of perfection, we tend to go in circles.
I am a Virgo owner and have similar tastes. I have a Pass X250 and have had great luck with it. I would just look at changing the preamp. Go with some tubed preamp. Possibly a Blue Circle, Copland, VACetc. My preference, the Blue Circle, but there are others. I don't think you will regret it and still save a lot of money.
There is some magic with the Virgo, that I have not been able to duplicate in 35 years of audio. I think Michael Fremer came across the same thing you and I have heard.
When you have a piece that appeals to you- why change?
I remember getting a word of advice from a reviewer (I won't mention his name) a few years ago when I bought his former reference CD player. I was supposedly trading down one or two levels and was down on myself at the time. I was not sure I would like it, missing detail, all the other goodies, we imagine we need more of.
He gave me some good advice and the magic behind this hobby.
It is not that we are looking at upgrading, but we are constantly looking for something different. In that search, we tend to make some purchases and sell some items that we regret later. So why not just stay with an item you like and just be content.
I have changed equipment less and am happier now than when I had a constant revolving door on the equipment. And yes, I ended up really liking the CD player he sold me even though it was " a step down".
If you really are caught up in the magic of the Virgo. Stay with it. I am. Who cares what other models are above it. While they are more expensive, might have better parts, more of everything,it still might be not what you are looking for and if you step back, you realize you already have what you are looking for. Virgo 11- if 6 years old, you have 20 years+ left. Those surrounds are not ones to disintegrate. If so, they can still be reconed and/ or replaced with the same drivers. The speaker on whole can not.