I was designing a many-sensor system back in very early 2011 and we wanted to go with AVR, but couldn't. They didn't have enough memory, enough flash, enough IO

I was designing a many-sensor system back in very early 2011 and we wanted to go with AVR, but couldn't. They didn't have enough memory, enough flash, enough IO, enough anything, even on their $20 chips. Then we found the STM32F lines and got chips that were dramatically, objectively superior to the AVR32 chips in literally every way, for about $3/piece. I still feel like I must have missed something for there to have been such a gap, but the project went great. So, I think there may have been more to it than marketing pitch about portability.