While I agree with your comparison, I also think that our money would have to be in the top 2-3 CBs of the league no matter what. There's also the aspect that other contenders will be in play as well, which may help Revis to justify going somewhere else.
I want to believe that it'll get done, and there are some great points from posters in this thread that would point towards a new deal getting done in the offseason, but as Ivan said---there is still going to be a line drawn in the sand. We also have to worry about other teams making stronger offers as well, of course.