equill, check out
http://www.apple-history.com/ and sort the list by family, about mid-way down there is an exceedingly long list of Performa models, more than any other series of Apple computer. In fact, these are just the macro models, click on any one of them and the various sub-models associated wich may not be independently listed. At your count of 70, it sounds like even Glen Sanford may have missed a few ...
My Performa 6400 was also the PowerMac 6400 (and if I recall was the LAST Performa model), the PowerMac being the more scare variety, oddly enough. But, for whatever reason I would prefer to have the PowerMac as a collectible. If I were looking for a practical computer, I guess it wouldn't matter. In comparing to cars, I would align the comparison more to Ford's partnership with Mazda. If you were a collector of Mazda cars, I seriously doubt if you would include the Ford badging of certain models for the US in your collection and especially not Mazda badging of certain Ford vehicles (like the Mazda 121 – a rebadged Ford Fiesta), unless you had unlimited resources and obsessive compulsive disorder ... but, driving one is a completely different matter.
As for Apple, I don't doubt the role of the employees and management at any given time. However, Apple has a repeated habit dating back to the introduction of the John Scully corporate culture, of ignoring major deficiencies in their hardware which persists today. It just happened recently with my MacBook battery and I have delt with it on every Macintosh I have ever owned. Steve Jobs has picked up on it too. I saw the video of the iPhone release in the UK and he was asked what he thought about people being able to use the iPhone with other networks and he played dumb ... some very bad acting by the way ... until he was pressed to finally comment on the hacks. WHile this may well be the nature of corporate culture in general, Apple has consistently performed (or rather not performed) with predictable behavior in such matters. Personally, I blame the lawyers. Regardless of which employees are running the companies, lawyers tend to infest them like cockroaches. So the current occupants can move out, but the new ones are still going to have to deal with the pests. In a less negative metaphor, the lawyers set up legal policies which become like the constitutions of sovereign nations. Leadership may change but they still have to deal with the legacies of the past, which often determine how they must deal with current and future liabilities.