Acting as devil's advocate: It's too expensive. It's beyond the 100$ threshold. I know Mosaic keeps telling that sets sized less than 7CDs aren't feasible... but sets in the 4-5CD range are cheap enough to be bought on impulse, whilst a 7CD box is just too much for that.
There's various sides to every apect, I'm sure.
I'll definitely want the Hawkins box, but there's plenty of other sets from the past three or four years I still don't have.
WHOAH, that's one big booklet!
When was the last time Mosaic included such a thick booklet?
(Too bad about the error, though!)