What would the price be to renew after 12 months? Will it have changed at that time? What about 24, 36, 48 months? At what age will AppleCare+ no longer be avai

What would the price be to renew after 12 months? Will it have changed at that time? What about 24, 36, 48 months? At what age will AppleCare+ no longer be available on my hardware? How do I calculate my total cost of ownership over, say, five years, without answers to my previous questions?