Surely for example financially, usually individual CD's are better for label, but I also think that especially these times, something being affordable and compact has value. To get Monde Bruits stuff that was done before debut CD, all in one, seems good for me as I doubt many would leave something out. Inclusion of booklet, that has many formerly unseen things, works out well in box format, while stand alone CD would have to be slightly different.
I guess it can be said already, but there is going to be also 10xCD box of 2000's Government Alpha CDR's later on. Sure many of these are so good they could be stand alone CD's, but at certain point, if you're going to put out like 20 CD's worth of GA, it feels box sets might be only way to get it work. GA at his CDR era is so brilliant, but due format, many of releases gets never mentioned as they are not "90's tapes", that has almost fetishistic value. The 10xCD all deserves preservation and cultivation, but putting out that many stand alone CD's would seem to me as project that doesn't get finished. There is certain realism here, and in short, to get these albums into ears of people, the box will more likely make it happen.