Grow more food in less area.
A raised garden is higher in elevation, making gardening much easier on your back.
A raised garden allows you to have complete soil control, rather than trying to amend an infertile property.
A raised garden is a natural barrier for sneaky weeds wanting to compete with your veggies. And by adding a thin layer of mulch you can naturally control weeds without herbicides.
The soil in your Vita raised garden will warm quicker than the ground allowing for cool-season planting earlier.