Because banner is only a picture, editing the banner
itself is quite time consuming and it only offers limited space
to express something more detailed.
Infobox is a frame (layer) that shows up when the
visitor moves the mouse over the banner, its size is bigger (450x450
pixels for the top banner and about 250x250 for left banners) and
you may edit it's content very easily through your browser.
You may enter any text or HTML
It's ideal for presenting more detailed
information and up-to-date offers to your customers.