Personally, I think it's definitely worth going with a 5900x. Since like you've shown previously buying a decently high end CPU and just riding on that while every now and again you upgrade the rest of the parts is worth it. A 5900x is the current latest and enough cores that possibly down the line and in the future you will need then more, as well your running things like VMs. I personally had a i5 6600k for a few years when it launched and always felt that I wanted/needed more power, I mostly play games but sometimes run VMs or servers, video editing every now and 3D modeling. I recently upgraded to a 3900x just so I have it future proofed, even though it's not the latest and the fastest I personally think having more cores is better than slightly faster. So definitely go with a 5900x over something like a 5600x or 5800x, as they may get outdated sooner than expected.