Proof that staging sells - an exact property comparison

Everyone seems to ask for proof that staging sells.... I've been watching a property for a while now (and trying to convince the seller - who is a corporation - that they NEED to stage!)

Both of these properties are on the same street, they are the exact same floorplan, built at the same time.  The cabinetry, flooring & countertops are all the same.  Neither home has made improvements since it was constructed in 2005.  They are virtually identical.....

House #1:  2328 Daniel Island Drive, Charleston

originally listed on 12/14/2006.  original list price $349,000

expired & relisted on 03/16/2007 $345,000

House #2: 2338 Daniel Island Drive, Charleston

originally listed on 03/01/2007, original list price $345,000

on 03/16/2007 both homes were vacant, on the market at the exact same time at the exact same price...

We staged House #1 on 08/08/2007

House #1 CLOSED on 09/27/2007 for final sale price $320,000

House #2 is STILL ON THE MARKET with now current list price of $314,800.

I charged $1800 for the staging job on House #1..... so far they have saved 2 months of carrying costs and the home sold for $5200 MORE than the same exact house is now listed for.....

If you still don't think staging is worth it - you really need a paradigm shift!