I remember a neighbor of ours bought a brand new in box Classic 3 in 1977,,,the lady would bring it out to vacuum their car with occasionally. I remember wishing and wanting one SO BADLY,, i dreamed of owning one someday!
Sure enough, as soon as i was old enough to earn my own money,in the early 1980s, i traded our old Hoover DAM Powerdrive (that was more PROBLEMATIC than it was Dial-a-Matic!) for a Rainbow D2 with PN.
A year or so later i grew tired of fiddling with the water pan of the Rainbow,(altho i did have fun using it) and traded that D2 for a local shop rebuilt Kirby Classic 3, with all attachments, even the Saber Saw and Handi Butler. Whoever rebuit it had polished it up to a mirror like shine. Wasnt a scratch or ding on it. And was rebuilt with all original parts.
Finally owned my own Red Classic 3!!,,and had it for several years, selling it to a friend that i receintly found on Facebook. I asked her whatever happened to that Kirby,,She said it lasted for another 20 years at least, until she sold it at a garage sale when they moved.
Ha, I bet its still strong going somewhere!