Yo, Josh! If only 10 to 15% of fly fishermen tie their own flies, which is a stat I believe I have seen, then the prevailing opinion here is deeply in the minority. Not that I am surprised 😉
I tied and did not care for it nearly as much as I did actual fishing time. Dudes tell me to tie in the winter, and I tell them to fish in the winter, you mitches!
I am fortunate enough to have a buddy who has more time to tie than fish, so I don't buy many flies.
Were that to change, and it will over time, I will go back to tying again because I agree that it makes total sense to tie your own simple patterns. Also agree that the prevailing trend as you become more experienced is to simplify, so the tying gets easier not harder.