Classic Disney Live-Action HD on itunes

[Flanger-Hanger]

I've just been on itunes and I saw several Disney live-action titles that had poor quality pan and scan transfers on DVD, but are now available on itunes restored and widescreen with (what could be) Blu-ray ready transfers. Titles like In Search of the Castaways, The Gnome Mobile, The One and Only Genuine Original Family Band (FAR better looking than the DVD) and The Great Locomotive Chase (which had a widescreen DVD, but non-amamorphic).

Does Disney just not want to pay the costs of pressing and packaging Blu-ray discs for these catalogue titles? Is that why we still haven't seen advertised releases like Pollyanna and The Absent-Minded Professor?