Personally I think having the feature of Precision Boost Overdrive would make it worth the cost.
I'd agree on MEG for a new build. The 1300W seems overkill TBH.
P95 v28.10B1 128K in place FFT, 3.9GHz ACB OC using VID: 1.318V LLC: [Auto] (ie AMD stock), results in ~1.263V current/average under load. I see MAX ~475W from wall, so I reckon PSU is outputting ~430W. F@H with same setup but CPU 28 thread load and RX VEGA 64 @ 1642MHz / 1100MHz = MAX 610W from wall, I reckon PSU is outputting ~550W.
Just saw your reasoning for 1300W
, I'd do the same. TBH the Cooler Master V850 (OE Seasonic), I use is whisper quiet even with loads tested above.