AWS has shut down I believe only one service in its entire existence (SDB). And only when they had a viable alternative (DynamoDB) and helped their biggest users make the move.
I can't recall any Apple service that has been shut down without an alternative. They've certainly cancelled hardware programs, but that doesn't break your existing hardware. And they give plenty of warning for iOs phase outs. They pissed some people off by dropping support for old apps, but only after most of the big ones had been converted.
And Microsoft is the king of long term support. How long did they keep supporting DOS in Windows? Or 32 bit programs. Or Windows 2000!