My recent phone conversations with magazine sales menseem to go pretty much the same route.
"Hi! I have some happy news! I'm calling you to offer you this free magazine as a thanks for being our customer! Would you like X or Y?"
"No thanks. I'm not interested in any of those."
"But it's... free!?!"
"Save your money. Use it to make them better 'cos right now I don't want them even for free."
There's enough papery stuff delivered in my mailbox already, so I'm not adding any new stuff unless I actually want it to be there. Yes, I still do subscribe to paper versions of magazines because of the convenience (compact size, enough to read so it's worth carrying them to places, no big loss if they're used in garden games by two-year-olds). However, getting rid of physical objects is a burden, even if the trip to the paper recycler is just a few meters. I still need to actively do something to get rid of the "free" stuff, and suddenly it stops being free. Time is money, etc.
However, if they offered me a sampler PDF directly to my inbox, or a magic code to get 7 days of access to their online site, I might take it. I want my crap to be digital, 'cos I have the tools to deal with them, and I can deal with a larger amount of crap and samplers and ads on my computer than I can physically. The delete button is less than five centimeters from my right pinkie...
The more stuff there is, the more important disposability and deletability become.