I’m sure if you thought about this for a while you could come up with similar (ly effective) concepts for other seasons. (Personally I’m a big fan of November the fifth.)
Have all your calls and emails to your potential buyer not been returned by them?
Have you had one conversation and perhaps some interest – then you call back and drop a few emails and get no reply?
Sure, it’s very possible your buyer just really isn’t into you – or your products and services.
On the other hand, they just might be really busy and need a gentle reminder that you can help them solve their issues or help them accomplish something they want and need in their career or company.