I think we're getting more and more expensive. The Raspberry Pi 4 made a lot of deliberate trade-offs to stay at $35. Going to the ODROID-H2+ means paying another $85 plus (I forgot this in the parent) RAM cost. Then going to a "real mini-itx" board probably means paying for a "real" mini-ITX case and power supply. It'll be nicer for sure but there's significant price creep. Looks like the CPU isn't included either.
The ODROID-H2 Case Type 1 has a fan and space for two 3.5" drives for $20. The ODROID-H2 power supply costs $9.40. I'll be astonished if anything compatible with that ASRock board will match that.
The ODROID-H2 Case Type 1 has a fan and space for two 3.5" drives for $20. The ODROID-H2 power supply costs $9.40. I'll be astonished if anything compatible with that ASRock board will match that.