I want to use it only once
The theme is released under GPLv3 license. You can use it on any number of projects without any limitations.
I want to use it multiple timessave 60%
Under Developer's License you are granted a non-exclusive permission to use the template on up to 5 domains.
I want to be the only buyer of the template
A Buyout License ensures that you are the last buyer/licensee of the template. You are granted a non-exclusive non-transferable permission to use the template on multiple domains.