The iTunes Match song limit has been increased from 25,000 to 100,000!
This is a big deal for me because my iTunes library is massive. It is full of large libraries of classical and jazz. Additionally, I archive all of my music projects, concert recordings, and educational materials there. Now that the limit has increased, I can actually sync my iTunes playlists of all this personal data across all my Apple devices which is pretty powerful. I am even warming up to the idea of importing music from multiple machines instead of all from my desktop which is currently my media "hub" (where local copies of my videos, photos, and audio is stored).