I really don't understand what the big deal is. If you're mostly a gamer then just buy the games and play them. I'm mostly a collector and I have some rare games with messed up labels because I was able to get them cheaper.

It sounds like you just want to know how you can make the most off your friend's kindness by selling you these games for cheaper because of the labels.

My advise is for you to not buy them and let someone who will enjoy the games buy them rather than selling them to you for you to just turn around and sell them for profit.