Wiktionary
enjoyability
n. The state or condition of being enjoyable.
Usage examples of "enjoyability".
It was only as a dragon that he had discovered an enjoyability in the latter.
What Dozois doesn't say, but which his selections make clear, is that the lasting enjoyability of the stories in The Good Old Stuff derives in large part from the fact that their authors were serious writers -- not hacks, and not slumming, but drawn by the audacious sweep and thrill of adventure stories to try their own hands at them.