'Not a great solution. Would it be smarter to purchase the Professional edition monthly edition 2-3 times a year? Seems like that would just be $495 per/issue for us, and we'd get iPhone as well. Any downsides to this?'
Can you use DPS monthly like this? i.e. - publish a multi-issue viewer, let your subscription to DPS expire, then renew in 3 months time and publish another folio to the same viewer?