You don't need to pay through the nose with Intel, at least for latest generation. 10900K costs $499. 10900K with ECC called Xeon W-1290P and costs $539. That's 8% extra. ASUS Pro WS W480-Ace is $280 which is reasonable cost for a good motherboard.
The only advantage of Intel Xeon at this point is RDIMM/LR-DIMM support on their Xeon-W platform. AMD supports that only on Epyc and Threadripper Pro.