My home automation:
1. RadioThermostat (6 WiFi thermostats). No hubs required. When you are home on same network, you control the Thermostat DIRECTLY on phone or tablet, not via Web. Almost all the WiFi thermostats I've seen don't have this Local Direct-Control feature.
2. Chamberlain WiFi light switches (about 30 of them). Requires a $50 hub.
3. Chamberlain WiFi garage door openers (3 openers).
4. Schlage Keyless locks (6 locks) - but these are not WiFi. They will lock automatically when the door is closed. So I don't have to wonder if the doors are locked. As long they are closed, they will lock automatically.
5. Security Cameras - 4 main cameras (to view the 4 entrances/exits of the house) connected to DVR recording. The rest are cheaper DLink WiFi webcams.
6. Security Alarm - this one is not WiFi controlled. All manual.
7. Exterior lights all around house are set on automatic timer.
8. Sprinkler System - of course these are set to automatic.