Carstens is doing a trial of a free digital edition of Railfan & Railroad Magazine. Visit http://railfan.com/digital to sign up for the digital edition. They will email you a link to view the magazine online. It has the same content as the print magazine, so you're not getting a "reduced" version.
You can always get a subscription to Railfan & Railroad if you still prefer a paper magazine.
Clearly this is the shape of things to come in the publishing industry.