I would keep them for now and try to boost traffic by:
1. revisiting in order of priority ie. worst performing first
2. look at the title - can it be shortened/improved/changed?
3. look at the tags/summaries and add or take away words here and there...fine tune.
4. double check links and rss feeds.
5. add images/photos...or get rid of!
6. improving text capsules...small additions/more useful info....
8. give them all time, try and get more positive links and after 5-6 months if they're still poor copy them and save and delete or transfer to a blog.
Best of luck!