One thing to remember with these changes to the Sage 100, 300, 500 Business Care plans -- customers will no longer have any pay-as-you option with Sage.
Perfect opportunity to align your own plan with Sage's
If you take the attitude that ""we're not going to gouge the customer like Sage does"" -- then you should rethink exactly why Sage is doing this (Hint: It's all about the recurring revenue) and consider how this may apply to your company.
You can even take this further and not perform upgrades or other projects for any user not on your own agreement. I can make an argument for this in that first projects for users we did not sell the software to are very high risk because we're learning where the land mines are laid.