I don't think you're one of the Newsstand hoarders, just that you're playing right into their hands.
Direct edition hoards are hardly infinite, though they certainly exist for many issues. But nobody is generally hyping Direct editions as special or rare and when from any of the endless hype sites (or even here as we've seen too often) try to pump and dump specific issues, they are rightfully called out when people are actually paying any attention to their ..
Keeping copies for later sales as back issues was never the whole point of the direct market, though it was a point. But the extent of that varies wildly across the spectrum of comic shops and has also changed over time.