SUPPORT THE AUTHOR
Please do not see ARCs as free books. They are not free. Usually when an ARC is distributed, it is implied that the reader will review the book or at least spread the word about said book. If you have a blog, post your review. If not, post it on Goodreads. Even better, go cross-post your opinion about the book on retail sites such as Amazon and Barnes & Noble.
If you love a book so much, please consider in pre-ordering or purchasing a finished copy. Not only will these sales help support the author but you will have a completely revised and final copy. Trust me, the final copy is gorgeous and it's made to last!
Also, sometimes sales will determine whether the next book in a series will be published. If you want to read that upcoming book in a series you love, please buy a finished copy of the book that is already published. Sometimes publishers need to met a certain quota in order to give the okay to publish certain titles.
For some purchasing finished copies add value to their collection. There are some authors that you will buy a book from no matter what they write. Adding a new title to your collection by your favorite author is one of the best feelings in the world. So what if you have 5+ copies of the same title in your collection. If you love the book so much, it's okay to own multiple versions of a book. Some books come out with limited or special editions. Some people like to own foreign copies of a title. Not only are you adding to your collection but you are also supporting your favorite author.
PLAN TO RE-READ
There are some books that you might only read once but if there's a book that you plan to read multiple times, you might as well purchase yourself a finished copy. This way you can re-read the book whenever you want and how often you want without worrying about waiting for it to be available at the library. Sometimes the re-read titles might go hand-in-hand with favorite titles.
How often and why do you purchase finished copies? Let me know in the comments below.