Thank you so much for that nice letter about your magazine for business packed with good financial advice and industry insight, here is why I don't want to buy or take advice from you, and I'll tell you what you should or could have done instead to reel me in.

It's kind of humoristic really, you send me this letter in a premium envelope, with a letter printed on thick premium textured paper, for good measure you enclose a pamphlet on high grade paper, and just to top it of there is a printed members card with my name on in the same quality as creditcards ready for me to activate, that's all fine and impressive though the third time the same letter arrives, I'm thinking: and you supposedly offer financial advice and marketing insight? The sixth time the same promo that must have cost at least 4$ each - it's become a joke.

For that money you spent on those letters you could have done something that would have prob. worked much better, you could have given me 6 issues for free, or here is a campaign that would grab my attention better:
start with sending me a postcard informing me in a informal and peronal way that you're going to give me six issues of your magazine for free, when the first letter issue arrive send me a letter telling me that the faster i decide the more I'll save on the subscription

just a thought.