aRCLiGHT,
<>
No reason until the final release. Version 7.2 is an excellent product. It is also the official release at the moment. Version 8 is a Beta and it is being tested. It is not a final product.
The free upgrade from Version 6 to Version 7 was gravy. If you bought Version 6, you still have a Version 6 license.
There have been hints that the final release of Version 8 may not be free from Version 7 like it is now. I don't think it has been decided.
If you want a detailed list of improvements, search for "MJ 8.0 Beta Available", "match all words" "subject only" and you can get a partial list in tedious detail as each thread is started with a list of improvements over the last beta release.
CVIII