The only down side to all of this in my mind is cost.....
Um...Yeah. I looked at the Lithium batteries, looks like they might sell for $1200 or so wholesale? List was $1500 on renogy site, also at Home depot.
My cost for the AGM 12V group 31 trojan is $135. (List is $313, my retailer sells them for $270 to general public)
Trojan weighs 70#, Renogy 50#.
Both discharge to 80%, Trojan gives 500 cycles at that discharge, renogy 1500. So 3 times the 'life'.
Trojan is 100AH, Renogy 170AH. So 1.7 times the energy storage.
So.... for around 9-10 times the cost, I can get up to 3 times the 'life, 1.7 times the energy density, and save 20# per battery (in other terms, reduce battery weight by about 30%)
If I was 'competitively camping' the motorhome for prize money, SURE! But I use my recreational vehicle for recreation..

But honestly, if I was looking for extended camping power, spending $1000 on a 46 pound 2000 watt super quiet honda generator would be a more practical solution. (Or less on a 'clone' if cash is still an issue. I LOVE Honda) Add 10 gallons of gas at 60# would have a power source that can get me 100A/12V (1200W) charging for ~50 hours of charging, with ~80 hrs runtime at lesser loads. Bumper mount weighs in at ~30#, total package weighs ~135#. (Prolly another 20# more with plastic gas tank (9#) fuel lines/wiring etc) Or the same weight as two more Trojan AGM's.

( I went through this process deciding if I wanted to upgrade to 4 AGM's, and figured for the weight the genset would be a more practical choice)
But it would not be NEAR as cool 'bench racing' with the other campers.
Spending $3K for two batteries that need special environment, different charging, and even need a special tool to reset* if they cut out due to low voltage/undercharging. and have non standard lug size*.... they better give me MUCH more 'bang for the buck' before I get them. I forgot to mention the EXTREME recycle-ability of lead-acid batteries compared to Lithium. No contest there.
But hey, if you DO get them, keep us posted! And THANK YOU for being an early adopter, and helping to finance new developments.
*https://www.renogy.com/lithium-iron-phosphate-battery-12-volt-170ah/ read comments.