...but I just don't understand comments that REs take such an auful lot of maintenance. ...
The old design makes it a little more maintenance intensive.
First, maintenance is every 1854 miles instead of say, 3000 or more commonly 5000 miles.
Second, it is more complicated than say, a unit-construction engine. For example, instead of one crankcase to fill up, you have an oil tank, a primary case, and a transmission.
Third, you have old-style engineering that warrants extra attention, and can result in operator error if not done properly (I know this from my own limited experience): Compare the drive chain adjustment procedure on an Electra X to any 1970-1990 UJM. Cables, ferrule fittings, springs and cams need proper adjustment and lubrication. During routine maintenance gaskets should be replaced - not reused.
You need to pay attention to things on this bike that you don't have to pay attention to on your driveshaft, watercooled, EFI Hondamatic.
Careful maintenance is rewarded with good results. I think the converse is true too.
matt