As usual, the use case really matters. My system has an embedded CPU and I kind of regret that. Unlike
@bent98, I do not have the luxury of substituting a different CPU as needs / use cases change. His board is incredibly flexible and as scalable Xeons come out of datacenters, it's going to potentially even more performant despite being (relatively) inexpensive.
People get way too hung up about older boards. Unless your use needs are on the bleeding edge, there is no need for PCIe5 or even 4, etc. I remain skeptical re: transcoding on a server vs. the end-point but that also reflects my use case. Etc. But everyone has different needs and their rigs should reflect that.
While buying heavy iron is a lot of fun, the reality is that within the next 6 months the rig will start to become obsolescent. So you likely are better off with used gear that's already depreciated or new gear that is no longer on the bleeding edge. Both acquisition types are likely to blow smaller holes in your wallet and offer better performance for the investment made.
And that's the last thing re: my soapbox rant here, I find the argument re: SuperMicro being expensive a little weird when folk are spending a few hundred bucks on the motherboard and thousands on the drives and other stuff, yet complain re: SM pricing. Also consider SM customer support vs. the competition.
I was so incredibly lucky to have iXsystems in my corner of the ring when the C2xxx Intel AVR54 bug emerged - iXsystems was super handling multiple motherboard exchanges until I got one that was current (1.03) and which worked without issues. Compare experiences from folk who tried to contact AsRock unless they got lucky.
When I inquired as a single-motherboard customer with SM and WiredZone, I got replies within a day to make sure things were right. I consider that a great value, i.e. a vendor that replies when things go badly vs. a vendor that may offer a competing motherboard at a lower price but whom you will never be able to get competent customer support from.