So this move by sencha says so many things
1. They are in trouble, financially
2. The lack of reponses in this thread is a bad thing, can only mean your active user base is not big, and this move will make it even smaller, as it has been said small projects can't cover the cost! .. and what about future cost when they only sell a min of 10 rather than 5. Trust has gone.
3. ..... .NET OEM agreement etc etc. They don't care about you else they would allow you to offer your own terms.
4. Last time I checked extjs is under the GNU
... everyone who's love the framework but not the cost "fork it"?
Don't get me wrong I love the framework and renewed my support contact and you guys are always very helpful, but sencha is going to kill your business. Few hundred $ all happy to pay and not think about it to much, few thousand $ were all going to talk about options a lot more.
My, company cannot now justify using the framework for anymore project, and will be sticking at version 2 for current ones.