A cheap 2.5GbE managed switch was one of the best home networking upgrades I've made
Cheap doesn't have to mean bad.

I was considering upgrading the backbone of my home LAN for a while. While I "only" have gigabit broadband, both my PC and server have 2.5 GbE ports, and I figured it was about time I actually made use of them, especially given that my ISP is rolling out 2 Gbps broadband (though at a significant premium). I didn't want to invest a whole lot of money, so I scoured the internet for a small and cheap 2.5 GbE managed switch to upgrade from my 1GbE unmanaged switch. It turned out to be a pretty big upgrade, and I absolutely love it.