I like that approach very much. I think all of this comes downs to the product and/or service you are offering.
I've never been fond of the pushy sales tactics. I've lost count on how many products I've not purchased online because there was a very aggressive push tactic in place. You know, like buy on or before [date] and we'll take an additional 10% off. I know that if I came back after that date the same discount would still be there.
Different calls to action trigger different responses. From my perspective, the best way to approach this would be to utilize various call to action methods. This way you can target a broader range of personalities.