Well, Garmin (like many vendors) tend to sell their products to use on a specific unit and only for that one unit. I'm sure everyone would be happy if they can "transfer" their license from one unit to another (as long as it's in used by one unit at a time; after all, the payment was for one unit) Like contents such as maps, we pay for the data and effort put into making it. That's why it's best to get Lifetime Map if possible, but it's extremely annoying when you paid for LM and can't update it because of crappy updater.