Similar to promising potential customers that your product is doing things it doesn't actually do and hoping you can add the extra features before anyone finds out.
I view those as distasteful, but I've yet to see any company/salesperson who doesn't do it. I'm sure this looks different once you are in sales and everyone is doing it, but from my seat over at operations it sure looks dishonest. I hate it when vendors use these tactics on me - so how can I do this to anyone else?