Issue 67, according to the email I received last night, will be free of ads with full color pages throughout, available as a hard or soft cover copy.
For those not familiar with Wax Poetics (WP) magazine, it's pretty much the Lexus of all periodicals that represent hip-hop, R&B, jazz, and all the subgenres. Issue 50, which was originally released back in 2013, featured the music legend and featured extended interviews with those who were once close to him musically. This also was for pre-sale and though re-released in May 2016, is the best-selling edition in the magazine's history.
As for the collector's value, most WP issues bring in a nice return, as most give intimate details and/or exclusive interviews with recording artists of past and present. I was able to sell my David Bowie/ATCQ issue for almost three times what I paid for it. Remember back in the day when you went over someone's house and they had the latest issues of Ebony or Jet spread across the coffee table? If you've got little ones (or kids at heart) that like to scribble on things, you might want to keep these hidden at all costs.