apple care? you did not buy apple care? that is not wise. their desktops? you mean imac or mac pro? i think all computer can break down.
But retina, is state of the art.
apple notebook = buy apple care use 3 years and throw away after warranty over, you dun want to pay them to repair it and there is a new one every year, why would you want to use a 3 years old technology?
Every 3 years = new laptop and PC. that what my advice.