I'd get the New Yorker in a minute if it was even remotely priced the way it would be for a print subscription. I'd pay even more--due to the convenience factor, but not $5 an issue.
The demand is not there because their prices are unrealistic.
Indeed, someone should tell them they would sell more magazines if they were priced even remotely reasonable.
Look at newsweek and Bloomberg Businessweek for how you might do subscriptions. Popular Science is priced right too, but their interface is just a bit over the top. Still a decent magazine though.