Is there any evidence that the order of this promotion copy matters?
For example, let's say I want to give away 50 widgets for free and start charging $10/month thereafter. Which copy generally converts better?
Get 50 widgets FREE
$10 per month thereafter
$10 per month
First 50 widgets FREE
In Case A, there's an immediate call to satisfy a "what's in it for me?"
In Case B, there's a recency effect.
Obviously, a split test would provide more information, but that requires resources.