JDelekto: I think they call that natural progression. But think about, if you were the person who created the buggy whip, would you still push and shove that tech when the horse and cart was replaced by the horseless carriage?
OneFiercePuppy: No, natural progression is not the same as planned obsolescence. To use your example, planned obsolescence would have been if the buggy whip manufacturers had some deal with the farriers or leatherworkers (I'm not actually sure who handled the tack and harness repairs, I thought farriers were just for horseshoes but the wikipedia article says "...and tools" which is vague) to not repair the harness if the owner had an older buggy whip, requiring them to buy a new one to get their repairs.
(It's a little bit of a stretch, but there was no direct analogy in the pre-industrial revolution world for planned obsolescence AFAIK.)
Natural progression is - you have other, notionally better, options, so you won't want to use Widget A any more.
Planned obsolescence is - Widget A, which you need to do Task A, is functional but no longer an acceptable tool. You must still do Task A, but you must use Widget B now, instead.
EDIT: typo
Well, the "planned obsolescence" is somewhat apparent from what a person who came to replace the compressor in my refrigerator told me: "They make these things so they only last 5 years.", of course, it was three months before the 5 year mark, so I ended up getting a $500 part under warranty. However, I remember refrigerators lasting much longer than 5 years before some part on them fails.
JDelekto: But think about, if you were the person who created the buggy whip, would you still push and shove that tech when the horse and cart was replaced by the horseless carriage?
TwoHandedSword: Of course not. But I'm not sure that's the best metaphor here. This is more like when the auto companies responded to the 1970s oil crisis by removing all the personality from their cars, making them all small, square and boring. Now, 50 years later, classic muscle cars are popular again — but you still can't go down to your local dealer and buy one; and today's "classic" cars are still heavily modified from the original: they have things like catalytic converters, power steering and brakes, and air conditioning.
Point is, you might want to go back, but chances are that someone else — whether it be Detroit or Seattle — has imposed some kind of limit.
I agree, it was like comparing apples to oranges, but if one thinks apples taste better, then there really cannot be a comparison. :)