I always wondered what they were hoping for with their server products back when they had them. Consumers and end users benefit greatly from the vertical integration that Apple is good at. This doesn't translate with servers. Commodity hardware + linux is not only cheaper, its often easier, and was definitely less proprietary.

Its also a race to the bottom type scenario. Apple would have never been able to keep up with server release schedules.

Was an interesting but ultimately odd moment of history for servers.