Just a note of how users are reacting, the petition is over 20,000 signatures. Let's say that they only bought Photoshop CS at one point @ 699$ and refuse to update.
That's around 14 Million less dollars for adobe, not including other apps, just Photoshop. I do hope adobe wakes up.
You do realise Adobe is a multinational corporation with a market capitalisation of around 22 billion US dollars and sales around 13 million A DAY? If every one of those objectors refused to ever give Adobe another cent their sales would see less than a 1/3 of 1% drop.
Not saying don't object, just putting it in perspective.
20,000 Users petitioned, that doesn't mean they're isn't more like 100,000 or more. Even yet, add Dreamweaver, Fireworks, and Indesign and you've got hundreds of millions of dollars. Adobe won't go bankrupt over night but over time could lead to its waning as the market leader.
So yes, It's relative.