I've been holding off on buying the individual seasons (with the exception of 1 and 2) hoping that they would be released as a complete collection. It will be this October. I wish they had repackaged the sets so it's not so bulky.
It should also be noted that this collection doesn't include the 4 telefilm collection that was released a year or two ago.
(By the way, wouldn't it be great to see Lansbury reprise the role of Jessica Fletcher one last time in a final TV movie?)