After several years of use, I wanted a battery replacement for my 1st-gen Retina Macbook Pro, so I brought it to the Apple Store. The device was old, but still

After several years of use, I wanted a battery replacement for my 1st-gen Retina Macbook Pro, so I brought it to the Apple Store. The device was old, but still supported, though far outside even the Apple Care window. I was told they they should normally be able to do this replacement, but they didn't have replacement batteries available. After mentioning I could just leave the device with them until the stock became available, they went off into the back for a few minutes. When they returned, they said they would accept my years old Macbook as a return for its original purchase price and I walked out with a brand new Macbook Pro essentially for the cost of the tax. I cannot imagine getting this service from any other computer vendor.