In my experience, cheaping out on a mobo is a bad idea. Expensive motherboards have things that differentiate from cheap ones:
- lighting
- a better BIOS
- more ports, headers, (RGB, fan, etc)
- reliability
- some are equipped with surge protectors
- speedier boot times (by slightly)
- better power efficiency, etc.
There’s a lot of reasons, and depending on your budget I’d recommend anything about $100.