I used to have an iMac, MacBook, iPad, iPhone. Total cost: ~$4,000.
I now have an iMac and an iPhone. Total cost: ~$1,700.
I'm very close to not replacing my aging iMac with another iMac and doing all my "computing" on an iPad Mini, an iPhone and an ATV. Total cost: ~$625.
I may not achieve it and end up getting the 11" MBA this cycle. ~$1,200.
But I think the next time will be only an iPad and iPhone.
That's the future for me,...