Mike at the D-backs has hooked us up with discounted tickets for perhaps the two biggest weekend series the rest of the way. The first is September 9-11, when the team will be honoring the 2001 World Champions and the other is September 23-25; that's the penultimate series of the year, against the Giants, and could prove decisive in Arizona's playoff hunt The team really want to make sure Chase Field is packed with loud D-backs fans - that'd be us! - for these games.
Obviously, these contests are likely fill up fast (especially if the team continues to stay in contention) so I'd recommend getting in on these sooner, rather than later. Maybe we can squeeze in a last SnakePitFest in September?