[UltraViolence]

I'm looking for a cheap ARM MCU with I2S support and one that I found was a Chinese part from GigaDevices which is $0.50.

On the other hand, lots of software is written for STM devices so spending a couple of bucks more for their parts will save you development costs and time.

[daviddever23box]

From an employer's perspective, the extra cost of a ready-to-roll development target is always worth it in terms of productivity.

Today's constraints are not tomorrow's constraints; I'd rather be hustling to acquire the skills necessary to earn 500x (or greater) that $100 USD per month.