In the business sector, the depreciation schedules written into the tax codes provide an incentive to replace hardware every 2 or 3 years, whether or not said hardware needs replacing. Back on the topic of this thread: wouldn't _ANY_ computer become collectable at some point, even something like a Packard-Bell, as, say, an example of an early-1990's commodity PC? Not that everyone would want one in their collection. Among the slide rules I own and have used are nice laminated bamboo K&E and Post examples, but I also have a plastic "clone" and a simple wooden no-name model. Perhaps the thrust of the original question should be "future inoperable or unrepairable computers..." Bob -----Original Message----- From: R. D. Davis [mailto:rdd@rddavis.org] Sent: Monday, July 21, 2003 10:55 AM To: cctalk(a)classiccmp.org Subject: Re: Future uncollectable computers... <snip> Something about all of this upgrade mania makes no sense to me. Upgrading just for the sake of upgrading seems rather pointless. <snip>