It seems many on Hexus have very short memories.
The E4000 and E5000 series processors were quite cheap and could use a £50 motherboard to be overclocked with. I should know since I am one of those people. My E4300 is still running overclocked at 3.1GHZ(from 1.8GHZ) using a £10 heatsink and a £50 motherboard.
It basically had better performance than a £200 E6600 at around half the price.
Plenty of people bought the E5000 series processors and got large overclocks on them using cheap motherboards.
I know people who have unlocked Athlon II X3 processors to Phenom II X4 processors by using relatively cheap motherboards.
It seems budget overclocking and CPU modding is only dead in the eyes of people in this thread who all have expensive computers!
Many of the socket 775 processors could be overclocked a large amount and were under £100. Socket 1156 inflated the price of the lower end motherboards.