No doubt - which is tragic.
My two favorite computer games (by far) are
Fighters Anthology (1997), and
Star Trek: Armada (2000). Just absolutely phenomenal games.
:)
But the first was abandoned when EA disbanded its military-simulation division ("Jane's"), and Armada was completely abandoned after a legal dispute between Activision and Paramount (one day, all the Armada-related materials on the website just disappeared).
On second thought, that's probably why games like Armada couldn't be officially released - too much of a copyright hurdle between Activision's code, and Paramount's art/storyline/characters/etc. But it's nice to dream that they could be; both Armada and Fighters Anthology still have active modding communities (and that's saying something with FA, which had no mod tools) a
decade later. Imagine what people could do with the full sources. They're good games; it's a shame that they'll eventually just be forgotten and lost forever.
If I was a game developer, I'd want to snag a copy of all the source code just as a product finished, so I could share it around a decade later and see what happens.