I don't know. Sure some improvement could be nice to Mint's Software Manager.
How ever, I don't see reason to make software manager as commercial. That would just make things more complicated, because payment system requirements. Most of us use free softwares anyway.
What I hope for Software manager.
1. After installation, show status installed. (I consider this as bug)
2. Ability know what softwares are compatible with you desktops. Example, I don't consider KDE software for Gnome desktop as fist choise. Even if it can be installed.
Asus P7P55D, i5 750 2.6Ghz, 4GB DDR3, radeon 6540 (Gallium 0.4), 80GB Intel SSD, Dell 1920x1200, Dual boot, Linux Mint 14 Cinnamon, Windows 7