"And it didn't sell near as well as it should have."
maybe because it is an updated version of the previous book with no allowance made for the punkies like me who bought the first issue ?
In a similar vein I have the 3 different issues of "X-planes" . Not because I like it but because no one is interested in buying from me the two earlier editions which I bought as soon as they were released...
Updating a book could be a good or a bad idea ....depending on wether you have bought the first issue or not.
(obviously this is going completely outside the topic, I know !!!!)