Oh don't you worry; the goal is to get collection sets with extras for the die-hard fans.
Oh, no, I'm not at all worried about that (in fact, I would
heavily support such a release; my
Legacy Collection idea, anyone?). What I
am worried about is how well a DMC-exclusive release of the shorts would do (and trust me, there is a
much wider market for the Sensational Six than that); a mainstream release would, undoubtedly, be a much better way to go.
A compromise would be to produce both a version for the die-hard fans and collectors and another for casual fans who can't afford the bigger edition, but still want to buy some of the shorts on physical media. The
Looney Tunes Golden Collection and the
Looney Tunes Spotlight Collection being released alongside each-other is a near-perfect example of this marketing tactic.
.......or, to be more realistic, release something along the lines of the
Walt Disney Animation Studios Short Film Collection (granted, not all the shorts would be released all at once, but such a release would mean that at least
some of them are readily available).