It's capitalism, the retardation process is inevitable. You can only manage it so it's more or less painful. Do you remember Derive?
For those interested in the source of the claim I made: here it is.
Do you remember Derive?
I still use it from time to time ;-)
So small, so fast, so powerful!
Exactly! I used it on my Toshiba T1000, no HD, from a 720kB diskette! But do you remember the story, how it ended? It got acquired by a rich and reputable corpo. Everyone hoped that it would mean a great future for the development of the software. Just don't be naive again, when what you are seeing is exactly the same story, just happening now...
At least there still was kind of considerable advancement/development even after the Software was bought by TI. But similar to Mathcad the goal sure was not further develop and market a PC software but rather to use the software or a variety of it in their pocket calculators (TI-92, TI-Voyage, TI-Inspire). I am not sure how much of the PC software has found its way in the firmware of those calculators but development of the PC software as a stand alone product stopped with version 6.03 (I think).