I know this is a bit late, but I loved the ad! It's nice to see the cartoon (lol) as I use one as well. The ad is great! Please keep up posted on the results will you?
I have only done one direct mailer and it didn't work for me, but I think I did it all wrong to be honest. I was in my first year out and didn't think it out very well.
Next on my list for my 2nd store is bulk mail deal from the USPS. They have a new program out now that allows you to pick a neighbor through just one mailman/mailwoman and they will deliver to all of their addresses on one route. So you can really pick and chose. Each "stop" (I think that's what they called it) costs you XXX amount of dollars and the more you do, the more you get of course. I think the cost is roughly $.14 per address and there are no addresses on the mailer, so that gives you more room for marketing.
http://pe.usps.com/businessmail101/getstarted
I have a meeting with the DM of our local PO this week, I will start a thread once I get more info. I also believe the DM told me that 4000 addresses would be $600, not sure though if that was correct. I know that comparing to my own direct mail program I was going to buy a full priced stamp! Not good lol