"Enuf said".
Yes, it's understandable that for the average rv'er that only weekend camps or does little boondocking and rather be tied to a power pole or run a generator the cost can be overwhelming. But it is coming down especially if you diy and build the batteries from cells.
As a fulltime Itinerant that doesn't want to be a slave to a generator or rv parks with a lot of choices for boondocking. I took that rv park money that would of been paid out and put it into the system (batteries, inverter/ charger and solar) on the 5th wheel, which for "return on purchase" was 400 days of boondocking. Now with over 1,471 days boondocked out of 1,620 since install it has paid for itself and then some, plus a better rving experience out and away with nature. Quietly
If I can help or show what some of the benefits may be with LFP from my experience living off of them in an everyday use, great. But one still has to think "what if". Being out and away with a shutdown of power and not knowing what to do next can be a rude experience and an eye opener. Do your homework first.
Bottom line though use what best suits you for the conditions. There is no perfect way, just possibly more convenient. ;)