It seems like most messages of this type try to pretend that it's not about money. The worst is when a company uses lines like "mutually beneficial" or "we're confident this will be better for our customers." When I read that, I'm not just getting unpleasant news -- I'm getting unpleasant news from someone who thinks I'm stupid.
Redgate's message is candid and addresses me like a grown-up. I think that's much better.