I'm not too concerned about any significant price increase in the short term. Although as has been pointed out, the executives at Adobe have an established track record of making hasty, wide ranging decisions without much forethought or warning. So anything can (and has) happen. It's purely a matter of record.
What I am concerned about, is over the long haul, will there be enough new features/improvements/additional enhancements to warrant continued investment.
Before the apologists start crying FUD from all corners of the planet, hear me out.
It's not a matter of affordability. It's not a matter the offered price point. It is purely a matter of Return on Investment. I have concerns that once Adobe has reached saturation of the market, will they continue to offer the same pace, quantity and quality additions to their products moving forward? More important, how much effort will Adobe expend on the features and concerns I have for the products I use. I learned my lesson with the Book module in Lr to be extremely cautious about what you wish for. While it is an aid for some, for those of us that wish to use book/album printers and binders other than Blurb ... the module is a waste of time and effort.
I have to say, for my work, Ps CC 2016 and Lr CC didn't really bring much extra to the table that wasn't there before. While I appreciate the effort ... I'm not sure the new additions have yet or will have any measurable impact on MY bottom line. I have been a Ps license holder for well over 23 years and Lr since the very beginning. Many of the features that I use in my daily workflow with both apps, I have already paid for. Some, many times over it seems.
Yes, $9.99 a month (plus tax) isn't much of an amount to be concerned about and it's only a couple of cups of coffee at Starbucks ... but if the barista started to deliver to you week old coffee and stale, dry and tasteless muffins for your morning fare ... $10 a pop isn't much of a bargain any longer. My grandfather instilled in me a wise slogan from Poor Richard's Almanac ... take care of the pennies and the dollars will take care of themselves. I just want to be assured that not only is my monthly stipend to San Jose affordable ... but also a worthwhile investment to my effort.
Bottom line, even though I am content with CC for the time being, Adobe is going to have to work a little bit harder to restore my faith in their cause.