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.