I guess the old saying "if it ain't broke...". If there are no new features then why mess with the system which is working perfectly is my thought process.

If the graphics improved or features improved it then would make sense but to upgrade just to upgrade isn't for me. I would really like to search via zip code vs. city/state which takes forever. I understand I need the 2006.2 disc or above which is why I started looking into this in the first place.

To your point if the 2006 disc is dual layer then the answer becomes obvious.