I think we should support each other. Becoming a published author is difficult, time consuming work. It takes discipline, passion, and luck. We should absolutely support each other whenever possible.
If authors read other authors work, they not only expand their own horizons but have the ability to suggest these works to other readers.
I myself have a book published just recently. It's called Orion, and I've written about it in my hub "Published!". I really hope the hubpages community supports my work because I greatly value the community and feedback of the authors here.