The Little sisters is indeed quite entertaining HOWEVER I would not want to read a copy of the gunslinger that did not begin with "The Man in black fled across the desert and the gunslinger followed."
Not having that as the first thing u read is an abomination, like seeing a star wars film that didnt begin with "A long long time ago in a galaxy far away..."
When I first read that book in the unrevised form THAT sentence is what immediatly hooked me, its the perfect begining and I feel sorry for the poor apprentice-tower junkie who picks up a copy that doesnt begin with that