Thank to Xuan Vu Nguyen for some discussions.
With Python, you have Tensorlow 2/Keras (free), PyTorch/Lightning (free), Jupyter Notebook (free). You can even use Google Colab if you don't own a decent gpu.
Not mention that Matlab often consume much hardware resources so you may need a better cpu, ram, hard disk. (You guess right, you have to pay even more).
MathWork, do you even research what people demand? What people need? No one is going to pay 4.7K USD for a deep learning enviroment with matlab (a crappy framework with a stupid language) because they spend money on GPU already.