For every extra Cinderella that enters the field of 68, a power conference bubble team loses its wings.
Bubble watching becomes a pastime in and of itself this time of year. Who will crack the dance? After the 31 automatic bids go out for conference tournament winners, it's a land grab for the remaining at-large bids.
For the so-called power conferences, winning the tourney is almost a bonus for some teams. On the other end of the spectrum, the automatic bid is the only ticket to the dance for some of the lower mid-major leagues.
And then there are the conferences in the middle that have a foot in both camps. These are the leagues and teams that create bracketology's true X-factor. Call them the middle of the mid-majors, if you like, but if you're a fan of any basketball powerhouse school, you may be more likely to call them spoilers.
Here are the mid-major conferences and teams that could play that role this year by unexpectedly landing more at-large dance cards than expected.
If you're one of the fans who will be on the edge of your seat come Selection Sunday, consider this your pocket guide to some of the mid-major tournaments to keep a close eye on as the big moment approaches.
All stats provided by ESPN unless otherwise noted.