Getting each game individually or buying thee Quest for Glory Anthology/Collection are going for quite the pretty penny.

Is this game actually so rare that its worth spending over $80 just to get the first 4 games with their manuals? I thought this games popularity rivaled kings quest.. which goes for a very reasonable price.
It's unfortunate, I was really looking forward to playing these games but after seeing how much they go for I think I'll look for something else.