I have considered it, actually. One of the prizes for NaNoWriMo is a free "proof copy" of your novel from Amazon's Createspace, which is one way to transition yourself into getting your works listed on Amazon's site.Have you considered self publishing? A friend of mine did that on an Internet based self publisher.
However, I have read that once you do the self-publishing route, it gets extremely difficult to get picked up by another publisher - even small-press ones like WiDo. So I'm wanting to explore other avenues first before going that route.
I think it's better in the long run, actually. I've started on the fifth edit of my latest novel, and the frequent rewrites / edits / revisions has helped to make it stronger overall. Each time I catch something I missed the last time through. These are changes that I probably would not have made if I had published after the second or third draft.
Now I just hope and pray that a publisher will see the novel as a solid piece as well!