Big boys like GEICO use multi-channel marketing that includes TV ads, billboards, magazines.... Postcards are just one part of their mix.
It's not easy to get expireds to call you just because of a single postcard,
Realtor DC.
There are usually other good, active agents who snag a good listing first, before the sellers have a chance -- or a desire to call you.
Remember, sellers normally take passive approach because they DON'T want to talk to real estate sales people - especially expireds since they got burned by an agent.
Yes, you can still make expireds work, but it requires more than just a postcard mailing. You need to stand out from your competition.
I just posted a video on my blog on how to do that (and what to mail to expireds). Check it out:
http://activerain.com/blogsview/2364515/expired-listing-how-to-stand-out-from-competitionHope this helps! Oh and I would be glad to review your postcard if you send me the PDF.