[drnick1]

I would rather use Ethernet where possible. I used SFP28 for a while, but this meant an extra networking card was needed in each PC. Ethernet is universal, and now that bandwidths are catching up, I no longer see SFP as necessary in a typical home or small office network.

[AdrianB1]

I think you are mixing it quite a bit. SFP+ is still Ethernet, also SFP28 gives you speed (25Gbps) RJ45 will never do, so the extra card for the extra speed is mandatory.