Zeev, I'm not so sure on this one. Last fall we had a similar conversation about KLAC and you mentioned it could run to 50 (msg #41192 - sorry I don't remember how to link the message).
I thought it was overvalued based on fundamentals but covered anyway at $42.50. I believe it popped up to around $45 and is now down at $34 which puts KLAC about 20% below the $45 mark while the NAS is only down around 12% in the same time frame.
These snorters are definitely more risky but when they fall, they fall hard. Their volatility is high up and down which is probably why they end up in your "Q."