I'm an infrequent upgrader so I was looking for a motherboard I would be happy with for a good few years. The Master has a very good VRM, 3 X M.2, should handle a 4950X no problem, most of the connectivity that should last a while. These days I find it's the motherboard features that force an upgrade not the lack of CPU power. Another reason I wanted PCIE 4.0, that won't get saturated for a long time.
Not a cheap motherboard but should carry me through until AM5/6 and DDR5, PCIE 5.0 are quite mature. I'm also planning to go to 4K high refresh at some point which should also give any CPU some extra longevity.