Judging from the M1, it seems the most important thing the big fat decoder costs you is not being able to manufacture billions of processors for small devices (

Judging from the M1, it seems the most important thing the big fat decoder costs you is not being able to manufacture billions of processors for small devices (where the decoder would be a much larger fraction of the CPU), develop experience and optimizations and capital based on that, and then have those benefits carry over to your high-end processors.