I'd say two things...First, you may not want them because, as you alluded to, they may be too old. I don't know how much the law has changed but it surely has in the last 9 years.
Secondly, while I was excited about LIAF for the first month of school (I bought a CD for each course), they turned out not to be worth their price. They do have some great hypos and black letter law etc. but all in all I found that they didn't define terms the way my professors often did. In addition, the cards often covered material we didn't deal with. If you have the money to burn, the recent set might be worth it...perhaps. If this set you mention is also amazingly cheap it might be worth your while but make sure the law is correct. Good luck!