My main usages with RPi 3 includes:
- SSH tunnel from outside when I concern about security / privacy
- Media box (Kodi runs pretty well)
- Running daemons (DDNS updates, torrent, etc)
- Running some nodejs scripts
RPi 3 does these very well, why bother with a more power-consuming box? Not to metion RPi 3 has WiFi builtin (I know it's slow, but good enough for my usage)