I don't believe that the value of a w/p rapier is going anywhere.
The new Mod has some ice giants that are 'immne to some types of stat damage', but fall dead in Cloudkill.
The raid will be dracoliches.
We'll still be grinding the other big 4 raids, of which w/p rapiers are very usefull in 3.
My perspective.
As for the topic - It is ridiculous what people want for rapiers. Reminds me of the Greataxe situation about 6 months ago. Silly.
-DfC