That's really the only way Columbia will release it's cartoons. Similiarly, Ub Iwerks Color Rhapsody SKELETON FROLIC is included on dvd release of THE LOST SKELETON OF CADAVERA - because a certain cartoon buff at TriStar insisted it be part of the package.
It's too bad the marketing geniuses at Columbia TriStar Home Video themselves don't understand the bounty of animation classics in their vaults...