Its a good question and am happy to answer.
The 2023 LEII we looked had a composting toilet and although those that have them swear by them, we are experienced and comfortable with managing regular black tank/toilet setups.
The '23 LEII also had the top tier solar/Lithium battery/inverter package. As you know, that is a significant additional cost and as expected the sellers asking price reflected that. We aren't off grid campers and have owned several campers that didn't have solar capability so we just couldn't justify the cost for the benefit.
None of the accessories that the owners had were included in the sale. If I recall, they were moving to a 5th wheel and were keeping all of their accessories.
Lastly, and hardest to quantify is the fact that it seemed to me that the '23 LEII wasn't meticulously maintained. For a unit that was +/- 1x years old, it showed some wear. I suspect it may have been stored outside.
In the end, we ended up with a meticulously maintained base model unit that came with all of the accessories. The previous owner had Oliver Service perform to the Truma Aventa Eco A/C conversion w/ CP control and add the aluminum storage basket. He also did a GREAT job designing and installing shelves in the closet, an upgrade that greatly maximizes that space.
Hope this helps. If you have any other questions, please feel free to ask.
Craig