What? You mean you read it too, Vinu?
An interesting use case just appeared here: http://www.sqlservercentral.com/Forums/Topic1339633-392-3.aspx#bm1340977
The discussion thread also sheds further light on its performance, just in case you didn't go through it. There's some more research to do, but it looks pretty good overall on performance.
My thought question: Have you ever been told that your query runs too fast?
My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.
Need to UNPIVOT? Why not CROSS APPLY VALUES instead?[/url]
Since random numbers are too important to be left to chance, let's generate some![/url]
Learn to understand recursive CTEs by example.[/url]
[url url=http://www.sqlservercentral.com/articles/St