Some great copywriting. Makes you wonder if the author does marketing/copywriting for a living. If not, it's pretty impressive as it naturally hits upon some of the key copywriting-to-sell concepts:

1) Enter into a dialogue with the seller

2) Benefits and emotions sell, not features

3) The 'AIDA' formula, etc.

Reminds me of Woot.com, and I mean that in a good way. Some of the best writing on the internet.