First, one must keep in mind that Photoshop is not owned by the one that "buys" it; one owns a license to use it - not the same as owning. Actually this applies to all licensed software programs.
The matter of LR going to the CC model has been covered.
I've been wondering if perhaps Adobe did some homework and found that CS was under-priced, and decided to take advantage of it. Manfred's comment about taking advantage of users may well be right - but what business doesn't do this (don't believe the advertising that says, "we're here to serve you").
In my opinion, the reaction to CC has been a wee bit over the top; there have literally been thousands of complaints about the few extra dollars a month, but suggest that someone doesn't need or shouldn't buy the latest body/lens version, and you'll be reviled.
Virtually every photo forum has had the same reactions - with the exception of this one. And the worst (I won't name it) is one run and frequented by what I thought were professional and knowledgeable photographers. Go figure.
Glenn