I think I like King's Quest too much, because I didn't even play for content... just the sheer fun and nostalgia! I still haven't beaten it yet, (or at least gotten to the end of the demo) but this is mad fun. The only thing that detracts from it isn't even your fault... All the times where the computer would take control of King Graham and play him, especially at the beginning of the game, kinda steal the feeling of "Oh look! I'm King Graham!"
Overall, an awesome game. Although I hate that owl, and always have. You say you did this from memory? I've played the real game and I still couldn't remember anything short of the introduction!!!