I find this to be true for a lot of applications. Some times it seems like fpgas are hammers looking for a nail. Where they can shine is if you need some odd

I find this to be true for a lot of applications. Some times it seems like fpgas are hammers looking for a nail. Where they can shine is if you need some odd combination of peripherals attached to a microcontroller: think of something like a uc with 4 uarts or multiple separate i2c buses. Anywhere you need a lot of parallel processing that you can guarantee won't be interrupted, like a video processing pipeline is also a good fit.