Wright; Your not alone. We sent out 5,000 postcards over three weeks and got a .2%. return (not 2% but .2%). Targeting zip code, homes over $250,000, income over $150,000 and age over 45. We tested the list and it was a good listing.
We get a 2% return on handwritten envelopes with a stamp and no return address. They got to open it. They look like it came from someone they know.
We were hoping for at least a 1% call ratio. But so far, not even near it.