Reckon you're right Bill. Still, with the Kwakeroo, things are relatively straightforward, which is one of the reasons I bought the bike (one to fix, one to ride, sort of thing). It's a bit of a Triumph copy, with a lot of people (who don't know much about bikes) thinking it is one. It has the bevel drive to the camshafts, the shims are simplicity itself (move the rocker arms over to get at the shims) and, although the tank has to come off to get to the plugs, it's just pipes off and two 10mm bolts. Balancing the carbs is simple, once you have a homemade balancer. Chain adjustment is made easier with the notches on the s/a, the oil filter is super easy accessible, and the front disc is easy to service too.
The battery is a bit of a faff to get too, as are cleaning and oiling the air filters.
Kawasaki stopped making the bike in 2006, meaning only 6-7 years of production. If I ever put enough miles on it to warrant an engine rebuild, etc, I reckon that'll be the time when it'll either be considered 'at the end of its serviceable life' or 'restorable as a Japanese 'classic'. One thing is for sure, I won't be the one to rebuild it, so it'll be how valuable others consider it to be.
As for the A10, it'll continue its journey as a fussy, high maintenance classic, but will always be so and will always be restorable to someone, if not me.