The buttons on the right side are out of my visual reach. Buttons that are inserted into the flow of the copy I would bet must have a higher conversion ratio. I keep laughing everywhere I see such stuff... I think knowing where you are coming from, I would not underestimate your skill level by even thiking about that. What was more on my mind, some presuppositions, metaprograms, overcoming objections and similar stuff. And I know everyone's brain works differently, but I am the bullet guy when it comes to a purchase: a good listing of all the imaginable benefits one can get from the product is what works for me.