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On paper we all WANT the latest tech; a more important question might be, what do you really NEED?
I own a Travato with one panel, I bought it thinking I would immediately add all the additional solar I could. I have owned it over a year and a half, and put 30,000 miles on it, and have not ONCE drawn the batteries down past 50%. I never needed the additional panels.... I have exactly .7 hours of actual use on the generator, we dry camp (no hook ups) virtually ALL the time. With the combined use of propane, solar, and the engines alternator, The "old tec", AC/DC, proven, Travato battery system is VERY capable. The generator makes it bulletproof.
Of course, everyone's "camping" style is different; if you MUST HAVE electric couches and cooktops, Keurig coffee makers, and constant coach Air Conditioning, you might find yourself running the generator once in awhile. But Don't be sold unproven expensive technology, that you don't really NEED.
Best of luck with whatever you decide.