The Reds and Budweiser have a deal for every Tuesday of the season where you get 2 field level tickets and a $10 gift certificate for concessions at the ballpark for only $22.
Apparently, this has been somewhat publicized, but I have somehow missed that. I can't find a way to get to this page from navigating the Reds website, but it is legit.
http://cincinnati.reds.mlb.com/cin/ticketing/group_theme_dates.jsp?loc=budweiser
section 139 aren't the best seats, but you are paying the same price you would to sit in the bleachers. Besides, most of the time you can move over a little closer to the action. This is a $78 value, for what comes out to $24.50 after tax.
There you have it, the deal is on.