The last time I overclocked any of my components was back in the days when socket 775 Core 2 Duo and GeForce 8800's ruled. It was cool to take inexpensive parts and make them run 50% faster to match the performance of the top-tier brethren.
I think the spirit of overclocking has faded quite a bit. There are several reasons why I think this is so. In some cases, it's too easy because of one-button overclocking, which defeats the fun of pushing your system through trial and error. Entry level boards and other parts are no longer capable of being tweaked, despite the fact I clearly recall paying $80 and $120 respectively for my first two overclocking boards and pushing cheap Celeron and Pentium parts to their limits. Boards that are capable of insane overclocks are now stupid expensive and overly bloated - I honestly don't understand boards like Gigabyte's G1 series or Asus's ROG parts with their I'm-eating-ramen-noodles-for-the-next-six-months price tags and I-don't-think-I'd-ever-use-those features. Lastly, I think components have achieved a point of performance where pumping clocks and voltages doesn't matter anymore except for the dedicated (and, might I add, wasteful) few.
If I were to place blame for this paradigm, I point my finger firmly at the community and manufacturers. The community demanded parts that could be tweaked and features added, and the manufacturers obliged and capitalized on their demands. The end result is overclocking isn't fun anymore, if not arguably pointless.