GOG.com has kicked off their summer sale and the Wing Commander series is on the list. The entire franchise is now 70-72% off, which ties the best deals we've seen in the past year. Each individual title is down to $1.79 and the whole package of all DOS & Windows games is just $13.42. Boxed games might be nice for the collection, but digital copies are really quick and easy to download and play. These also make great gifts!