I am about 90% decided on going residential next time around. The available space works. The residential costs about 1/3rd of the RV fridge I have now.
For that kind of savings I can easily double my battery bank capacity. I am an AGM battery fan & already have 220amp. With an AGM I can shove another wherever there is space & not worry about leaking or gassing. Already have a 2000W Pure Sine Wave programmable inverter charger.
All I would need is the extra battery cabling & perhaps install a marine type battery switch for bank #1, #2 or both together.
True, you don't hear of many problems with residentials in RVs. Putting residentials in RVs is relatively recent & found in RVs more likely to be found long term in resort type CGs, CGs where there is power, than the RV used for extensive travel & some drycamping.