These devices are designed to be entry level to home automation.
After a quick search, I believe these are the lowest ever price for these but i could be wrong?
Belkin Wemo Switch £20
Belkin Wemo Insight Switch £25
Belkin LED Starter Kit £30
These were in store at Sainsburys Westwood Cross but i believe they are national?
I took the last Insight Switch, but there's still plenty of the others left.