How can you remove a feature we have been paying for already for years?! ( 3d & lighting FX )

Adobe is very sucesfull company, right? They know what they are doing and the last thing they want is frustrated users. There is reason behind all this and I do not think it is pure economic. 

This is a user forum set up by Adobe for Adobe users to use to help other use Adobe products.  You are not addressing Adobe here.   Photoshop is Adobe property they can do whatever the want to it. Adobe is not disabling old version of Photoshop. Photoshop has never been a full feature 3D Application. Adobe has better 3D applications they want you to rent.

There is also open source 3D Application blender you can download and use for 3D work.