Yeah, Blu would be nice. I just wish Sony would re-release them. I like the Starburst sets, but there is no need for three extra discs per season. I'm pretty sure they could cut the size down from 12 discs per season to 5 or 6 and not lose a lick of quality on the video.
ADV seemed to be pulling a tactic (like A&E does for it's shows) of making bloated releases with unnecessary discs to justify a higher price.