How Important Is Acrobat 5?--McIlroy

In this consumer age, we're conditioned to rate software upgrades by the number of new features included. A low count is a minor upgrade; a high count a major upgrade. The 4.0 version of QuarkXPress, for example, had as I recall well over 100 new features. Must be a major upgrade. But, in fact, it's been one of the least successful upgrades of a major piece of software in the modern era. The numerous new features just didn't much expand the utility of the product for the average user.