as the story goes, it was one of the first personal computers to have a Graphical User Interface (GUI). while it reviewed fairly well at the time, it was extremely expensive ($9,995 in 1983), had very little in terms of software, and was quickly overshadowed by the fairly cheaper Macintosh once that hit shelves.
or, in the words of the Museum....
(that's Hansen Hsu, a curator there.)The release of the Apple Lisa was a key turning point for the history of personal computers. Without the Lisa, today’s computers might not use mouse-driven GUIs, and perhaps the Macintosh, and even Microsoft Windows, might not exist either. We’re thrilled to publicly release the source code for the Apple Lisa—for the first time—and thank Apple, Inc. for their permission and support that led to this release.
while it may not be of much use to a general consumer, having access to this is important for preservation purposes. going perfectly with the Museum's other notable source releases, such as DeluxePaint and versions 1.1 and 2.0 of MS-DOS.