How Not to Get a Briefing

I regularly receive emails along the lines of the following. (Redacted to protect the guilty.)

We were hoping to schedule some time with you later this month for a briefing with ACME. Your input and insight into the RANDOM TECHNOLOGY market space will provide a valuable forum for ACME's third generation product and technology offering.

Best Regards,
Buffy

I usually just ignore such, but here's the response I would like to send.

Dear Buffy,

You seem to have mixed up my mailing address with some other ghaff who is in the “business” (not that it would be much of a business) of providing free consulting and market intelligence to anyone who drops me a line. I’m sure his input and insight will be commensurate with the high value that you appear to place on it. Good luck finding the other ghaff.

I'm more than happy, in the course of a conversation, to share my views on whatever. However, to brazenly request an hour of my time with the explicit expectation that I'm going to be briefing you for free is just not going to happen.