IMO the top ten rarest games are:
Syd Mead's Terraforming
Super Air Zonk
Godzilla
Magical Chase
Dynastic Hero
Might & Magic 3: Isles Of Terra
Beyond Shadowgate
Bonk 3: Bonk's Big Adventure CD
... also rare are the two Hawaiian Island Girl releases if those even count.
There are 3 island girl games not 2.
I think we need to seperate RARE ( as in hard to find but not always expensive ) with just Expensive..
Cotton turns up all the time,
Bonk cd aswell, but super air zonk not so much
terraforming seems a hard one to find.
MC isnt hard to find, just expensive.
The island girls games are hard to find.. i also have a sealed Keith Courage ( along with god knows how many loose ).. but i havent seen that turn up much, was it sealed when sold as a pack in?