doublev,
If you're happy with your basic floorplan, I guess I'd be in the camp to suggest you modernize your present rig to your satisfaction.
I'd also like to echo that you're in an enviable position to be able to make such choices. :)
We were camping in New Jersey this past summer and there was a beautiful, newer (about 2 years old) high-end DP motorhome (probably $500k-ish). I forgot the make and model, but suffice it to say I was drooling over it our entire stay. I told my wife, when I'm ready to retire, used rigs like that will hopefully be within our financial grasp.
I had the opportunity to meet the couple who owned it and I complimented them on their beautiful coach. They were appreciative of the compliments, but they were also quick to add..."we liked our older rig better". Again, I forget brands, but it was a comparable rig, about 6 years older than this one. When I asked "How come?" They both said "All of the dang electronics & remotes! It's too complicated for us!" They wanted dedicated knobs & switches, not touch panels on their ipads/phones/whatever. I guess I can empathize.
As I'm getting older, I too, pine for the days where every function on a piece of equipment had it's own knob or button. Listening to the radio...want more treble? Give the treble knob a turn. Want the CD player? Push the "CD" button. Now, everything is menu driven. More flexible? Sure. Cheaper to build? Sure. More user friendly? That depends who the user is.
So, if you really embrace the "menu-driven technology" trend, then this probably wouldn't bother you. For me, I am now seriously thinking that when the time comes to start looking, I'm going to look for an even older, higher end rig. One from the era before everything could be controlled by an app on a phone.
Maybe that's just me. Gosh....I sound like my dad! LOL
Good Luck in your decision and search,
~Rick
