Just to give you a better idea of how the use of Extra Content will be different than the general description, see the Sponsorship packages below.
Reg Items with 'Show Image and Description' Checked
Reg Items WITHOUT 'Show Image and Description' Checked - and Extra Content Used
The first example shows what your packages will look like with the description displayed, versus the second which is only displaying the extra content. Like the description box, you can still edit fonts, add images, and format the text however you’d like.