It was generally a bad marketing decision to bring out all those unrelated season 1 sets in one day. It was like survival of the fittest, sitcom style, and only "Fresh Prince" and possibly "Full House" survived.
I think if they'd a) Found a more appropriate launch day for Night Court, and b) Combined seasons 1 and 2 into one set instead of offering only the short first season, they could have gotten better results even with the non-Markie episodes. The show got good enough in season 2 that viewers wouldn't mind the lack of Markie Post; the problem with season 1 is that it's a short season, there are constant cast shake-ups, and some of the characters haven't solidified yet (notably Dan and Bull). Spilt milk, I guess.
I'll buy the best-of disc if it includes the two-part "Hurricane" episode, the ultimate Night Court episode and one of the best sitcom episodes of the '80s. But I have a feeling that the episodes on the best-of will all be from later in the run, after Marsha Warfield joined.