Saying it was a lost decade is misleading, a year ago the dow was up 3000 points from where it was in 1999, and that is after it went down to the 7000's in 2003, which was close to where it was in 1996.
Dow cycles are indepenent of our neat calendar years. If the decade ended last October we would have been saying, "Yowzer what a great decade!"
Well, maybe we wouldn't have been saying "yowzer".
The 2007 highs were lower than 1999 highs considering inflation. The trade of the decade has been gold and commodities, not stocks.
I'd say the big winners are people who've spent the last two months going short. It's like buying during a boom, everything goes up - only question is how much.