You can get some relatively affordable 10G-BaseT SFP+ transceivers these days too. My home server has a DAC to a switch whilst my desktop is connected at 10G over Cat6. I don't really have the ability to saturate 10G but can quite easily exceed 1G for file transfers. It would be nice to get a laptop dock with 2.5G+ Ethernet as well, but I haven't gotten that far yet...