Thank you for your reply, I completely agree that self-education can work great for most purposes.

But some Master's programs may require academic credentials. Degrees are also important for gaining work visas in many countries.

Finally, I feel like structured and more "formal" education would be very helpful to me when it comes to understanding math and more theoretical concepts of CS. I had no problem learning webdev on my own, but for more academic-type things, it would just be easier to attend a program that will make sure I have no gaps in my knowledge.