Rhea Signature vs. ARC PH-7

I currently have an almost new ARC PH-7 as my phono stage. I'm running that through an Aesthetix Calypso standard, and finally through 2 Pass Labs XP-100.5 monoblocks. I have limited resources to upgrade my front end, but am leaning toward going with all Aesthetix Signature models-the Rhea and Calypso. By the way, I have a new Lyra Delos and am considering a Dynavector DRT XV-1S held by a new VPI Scoutnaster with the JMW 9 Sig arm. I'm sure some of you have heard these two-possibly even side by side. I realize it's all about personal preference, but does anyone have a recommendation? Something to consider-both Aesthetix will be upgrades to Signature from standard. How will that affect the resale value? The standards technically won't be new, but yet they will.