A book can be collectable in later editions if the first tends to have a high price that places it out of reach for most collectors. Common non collectable books like later editions, reprints, or a book clubs could still have value. Generally the resale value of a used book is half the retail price. Check a new book search engine to see if your book is currently being sold. Check the World's Greatest Books list.
Award winners tend to be collectable.
Use the IBCA Book Search to help you determine its value. To save yourself time, start with the most popular search engines. You need more than one vendor listing to help substantiate its value as there is safety in numbers. Make sure you compare books in similar condition to yours. Read this if you want your book professionally appraised by Glenn Larsen.