When I was much, much younger, CDs were a brand-new idea. There was an in-depth article about Sony electronics and planned obsolescence. Sony and Phillips had introduced the CD even while cassette tapes and Sony Walkman units were very popular, which many people didn't understand. Why bring out something that would make your own product obsolete?
Sony knew exactly how long to milk the market. Expensive first for the technophiles, then cheaper for everyone, then drug-store shelf for low income. They pointed out that while many people believe economy of scale is the main driver of cost and price, it has much more to do with marketing. They could sell the cheap ones earlier in the process, they just don't want to. And they already knew what the next latest and greatest would be and when they would introduce it, even decades in advance. I'd be willing to bet that there's no difference in their Camera division, or for that matter any other company.
I'm sure that with technology advancing at such a fast pace, decades have become years and the need to be flexible is even greater than before, but they already know. They know what and they know when.
The only huge mistake I can ever recall them making was failing to license the Beta Max to other manufacturers. They tried to keep in in house while JVC allowed everyone and their brother to build. By the time Sony got around to it VHS had taken over the market.
I'm sure the fact that Sony doesn't build this camera or have that feature is very well-researched.