I subscribed to the New Yorker for a number of years, but then discontinued it a few years ago as part of an overall program of scaling back when our then CEO cut everyone's pay. Likewise, I'd been getting The Nation since the start of the Bush II administration, but discontinued it when they undercharged my credit card auto renewal and then sent me a bill for the difference.
But when there is an iPad app, it is easy to forgive all. Both The Nation and the New Yorker have iPad apps and both provide a facsimile of the print edition. The New Yorker app is especially slick and easy to navigate.
Everything's all on one device, you don't have to worry about second class mail taking its time getting to you and receiving two issues within two days of each other, and there's no paper to recycle when you're done with the issue.