Are the new rule books worth the money or should I stick with

Depends if you and your group are playing the LRB version or the new one. A few rules have changed, some teams have changed a bit. DZ1 has a lot of league stuff and new teams. DZ2 has sponsorships, new players and a few new teams.

>>55337498
Have the rules changed enough that if we keep running the old rules that people who started with the new ones could easily adapt to joining our group?

They're not that different - just some tweaks. If your group is running LRB, you can continue and just tell new players where to download the rule set.

I'm going to say that your only problem at that point will be if players show up with 32mm based models to play on your 25mm grid pitch.

>>55338162
Should of just figured the "new" rules were just a way to get more money out of players. Thanks for the help