iMan,
I don't think it would be a good idea using them 5 days in a row. Not only will the reviewer think they are looking at the same content each day but so will your customers.
You might consider buying say 5 different sets of content for a few different categories and do something different each day. I'm sure others will have better advice but that's my approach when submitting to link lists.
As far as using the content again, sure why not. I have some content that is a few years old that I still use. It has been out of circulation for awhile so actually it's fresh again.
You don't always have to build sites for link lists. I build a lot of sites that are only in the search engines. You can get a lot of mileage out of content if you think of the other options available to you.
