Another Hegel H390 vs H590 Thread

Hey all, I know there have been a number of h390 v h590 posts so sorry for another, but I have what I think is a unique dilemma. 

I think the general consensus  is that while the 590 is marginally better, it isn’t worth $11,000, or nearly double the price of the 390 and that the 390 is the sweet spot. 

I was just about to make the purchase of a 390 for $6K when my dealer offered me a brand new 590 for $8500. Very tempting!  What do you guys think?  Worth the extra $2500?  

(In case it helps the rest of my system is:
Speakers: Duevel Venus (omnis - very inefficient) 
TT: EAT C-sharp w/ EAT Jo. 5 cartridge and EAT E-glo petit phono pre
Music server: Innuos Zen Mk III
Int. Amp I’m moving on from: Prima Luna Dialogue HP)