I only change motherboards when moving up to the next RAM format or CPU chipset. I stick with AMD due to cost and low thermals, and while their CPU generations shared the same interface I had one mobo for DDR3, one for DDR4, etc.

Can’t wrap my head around constantly upgrading the mobo to be honest. Sure, they have lots of features but I haven’t seen a situation where a mobo would be an upgrade worth doing without also upgrading everything else.