So because Adobe's revenue and use statistics are better than ever, that is confirmation that everyone is happy?
This has nothing to do with happiness. Trying to make everyone happy is folly. I am sure Adobe does a tremendous amount of research around how much to charge for their service. Adobe's research shows that the majority of users of Creative Cloud feel positive about it and have no plans to leave. I have software suites in my studio that cost me tens of thousands of dollars a year to keep licenced and supported. In that context, Adobe is a bargain for what it offers.
In my previous comment I was simply stating that I have yet to see a measurable "backlash" outside of the same talking points around "software ownership" and "it costs more". The fact that other options have not materialized more quickly is testament that the money to be made in this market is quite thin. Bohemian Coding (sketch) and Serif ltd. (Affinity Designer) are small companies, who are now facing the (expensive) challenge of moving their products cross platform. Hopefully they will survive. Bohemian recently had to make unpopular changes in its licencing to remain profitable - and this is for a software offering that does not overlap with an existing Adobe product!
The creative services industry is a niche market, and there is only so much money to be made from it. Apple stepped away from most of its high-end creative tools a few years ago. Adobe has its sights set on a broader audiences as well (business & science).
What really hurt Quark was when Adobe started selling their software in a suite.
I am going to respectfully disagree with you here. What killed Quark is that they ran Quark 3 and Quark 4 on a 6-7 year upgrade cycle. I was not drawn away from Quark by convenience, but innovation. At the time InDesign looked like a shiny new toy, with some huge improvements around workflow (PDF creation for example).
Things are changing though. Competition for Adobe is coming.
I have not used Adobe as my primary design tools in a few years. I moved to Sketch. I would be happy to have more competition, but I don't think its going to happen.
As stated above, I don't think that there is the opportunity in this product space that everyone thinks there is. Targeting users whingeing about Adobe costing too much means you already have a ceiling of how much money you can charge.
Adobe must be out-innovated, not undercut. Thats going to cost money, not be software on a budget.
I don't want to sound like an Adobe apologist. I have significant criticisms with the company, but those criticisms don't really extend to their business model. Adobe is rooted in the past, and still clings to a print-centric mindset. Adobe is not showing leadership around the real issues that are facing working designers today - particularly around Web and UX workflow. It is for those reasons I think they will eventually lose market share when a more innovative company comes along... not because of they change $50 a month..