When first DSLRs arrived people jumped on thinking lunch is free. It isn't, as usually, at least not completely. Front- and backfocus calibrations, sensor cleanings and replacements of shutters, that made good ground for small businesses dealing with this.
And those hybrid and electric cars will age, batteries deteriorate (capacity wise) and people can not more drive to uncle Joe's garage to fix it like old generation of cars. Of course, specialists will deal with them but like Fuji with slides without competitors.
In fact, first batches of Prius should be old enough already? What's happening with them, anyone?