I obviously didn't write the post correctly and the conversation has changed throughout the posts.
1) In the Metro Vancouver area where I live there are fewer and fewer full service propane sellers that are able to fill an RV or our 35lb propane tanks that my company uses for our little sweepers. Two stations recently closed near us and I usually have to drive along distance to get to one. You can take a 20lb bottle and do an exchange absolutely anywhere.
2) When I mentioned that propane RV's are being built less and less in favour of 'all electric' I was referring to diesel motor homes. Obviously gas and trailers will always need propane. I spend a lot of time on the forums for diesel owners and it has been mentioned many times that the trend is definitely going towards 'all electric'.
3) Dry camp without propane: Yes, I've dry camped without propane for a week no problem. I had an Aquahot hydronic heating system but still had propane. The propane was only used for my BBQ. You will run out of fresh water before you will run out of diesel. I ran my generator once in the morning and once in the evening only. The myth about you need propane to dry camp is no longer. The people that REALLY know through REAL experience by way of ownership of coaches with both propane and 'all electric' can testify to this.