seems like all the books out there are trilogies or series always leaving you hanging. wtf

What's wrong with a good book that has a resolution at the end?  I have downloaded a couple books on my kindle. I still feel my book (if it ever gets published  :) ) is a cut above.  Still nothing from the publisher yet, I am still waiting on the final edit. going on a  month now, it's cool  I am starting a another and it isn't a trilogy or a series just a really good story!