You temporarily receive extra trade-in value when you trade in your old MacBook for a new 15-inch MacBook Air. This amount is added to the regular trade-in value. For example, if your old MacBook is worth € 300 and you buy a 15-inch MacBook Air with € 75 extra trade-in value, you receive € 375 discount in total. After purchase, you have 30 days to trade in your old MacBook. You can only do this in one of our stores.