Well I do not think that you need to go very far to determine this. Magazine prices have already doubled to tripled in many instances over the last 5 years. And this was caused mainly from Magazine Collectors of course with a small inflow of new collectors most likely from the comic world. Once the majority of the Comic world starts to respect magazines for what they are. Awesome peices of literature and art that I feel surpase comics in many ways, then you will have a real feeding ground.
One of the large collectibility charms that Comic Magazines carry is the fact that they were RARELY stored or collected like comics. Many were stored stacked in piles in boxes. That box would be moved in and out from under beds, closets etc, and cause much of the corner blunting that you will see. In addition most were tied in bundles I believe and sustained a lot of damage from that type of delivery.
None the less, if you are a magazine fan, I think that your cherished collection will start to see that appreciation that it finally deserves, in pretty great magnitudes over the next few years!
-bounty