not too sure how many of the SP and other RV parks would like people digging holes in their sites.
i really can't see myself travelling the countryside digging holes at campsite parking spots.
also- some AS's have 1, some 2 tires per side.
wouldn't want to step into a hole in the dark.
besides - this sounds way too much like 'work' and we all know how much we want to avoid that!
like many others - i carry 1 or 2 bags of the orange legos - easy to pack, easy to use.