Carl, IMO, you're spot-on, brother! Modifications, upgrades, and otherwise enhancements outlined in various levels of detail in this forum are for information purposes and general "better" understanding of what the OTT can do during our collective travels. That said, our "collective travels" are widely different across the spectrum of owners. Everyone has their own "style" of camping with their Ollie - some fancy established RV parks with full connections for the majority of their travels, others prefer full-on off-grid boondocking for most of their trips. The rest of the owners likely fall in between these extremes.
So, depending on what "style" of camping you prefer, would dictate which mods suit your purpose of camping. But that's what's so phenomenal about this forum, there's such a wide spectrum of experience and expertise here, one can choose the mods fitting their camping style the best.
The discussion about DC2DC chargers are such an example. It's not a "one size fits all" issue, if you catch my drift....