It's a terrible idea, BGAs are known to fall apart like crap when poor quality balls are used just like everything Sony and IBM have ever used for mass production (such as consoles). Even high quality ones eventually break down if highly stressed, which is what enthusiasts do. Guess what the main two causes of the PS3 YLOD were, you guessed right, broken BGA connections on the GPU and/or CPU. Breaking pins rarely happens since it's on the motherboard now. That's not taking into consideration Intel will severely limit OCing if not kill it off completely, they have literally no competition. AMD CPUs will be something of a novelty toy by the time Haswell comes around, it will be like what's in tablets now.