I have an NFL site I'd like to put a value on. with no work it brings mid $XXX annually. http://www.nfl-superbowl.net
You might be able to get mid $xxx for it, but it seems like you're posting quite a bit which means it takes energy to keep it maintained.
I'm using the wordpress plug-in feedwordpress to update the posts. I just press a button and it auto posts.
The feed come from ESPN and Fox Sports. It is simple to change feeds, or add as many as you want. I have a different site that feeds from 30+ different sources.