Thanks for the comments. Yes the offer is a big step up from the 'fishbowl' type of opt in. On the other hand I'm always amazed how many cards I put into a fishbowl and never hear anything.
I'm guessing I'm not winning any free lunches....
But what a lost opportunity. I wouldn't ever condone adding someone to a list just because they put their card in a bowl.....but....
I do think that you should still take advantage of this opportunity to try and begin a relationship.
Wouldn't one email be appropriate?
"Dear Chris,
We really appreciate your business. Thank you for having lunch with us. I'm sorry that you didn't win the free lunch this week. That honor went to (insert name & picture).
We do have a weekly email that offers a lot of opportunity not only to save money but also to place orders online so you don't have to stand "in-line".
Would you like to subscribe? Just check the box and hit submit....."
This kind of email is entirely appropriate. I'm not adding Chris to any list and will never email him again without his permission...but at the same time, I think Chris would appreciate the opportunity to know what happened in the giveaway...and to have the opportunity to develop a better relationship with my restaurant...or barbershop....or national home improvement chain...or newspaper.
Come to think of it I can't think of any circumstances where this wouldn't be appropriate.