Don everything can be considered limited edition, at some point everything will stop being made. Used to have a great hot plate, thing worked wonderfully. Got hot quickly, had even heating, was silent and sturdy as hell. A year ago or so I went to pick up a hot plate, I thought I would get the same one I'd had earlier in my life. They don't make it anymore. I had no idea at age 19 that my much beloved hotplate was in fact a Limited edition and I would never be able to replace it at a retail store. Had I known, I may not have given it to that cute chick down the hall when I moved out of the building. I think the point crazyfandecks was trying to make which I agree with is what we usually think of as an LE print run deck. Demand for a deck makes it appear more limited than it actually is/was for the print run itself. There's lots of Virts but demand for them makes it appear as though there isn't many. People are always wanting them, that's a good sign for the brand itself.
Would I be surprised to hear DnD had 30,000 S&M 7s printed? Yes, I would. Half that at 15,000, no I wouldn't. That's a different situation though. Virts don't get held back and put into boxed sets and all that. They're just sold out very quickly. Kind of an important distinction there in my opinion, there's not any unnecessary illusion created by the store itself like some others tend to do with certain decks. These guys just do the "we have these for 2014, here you go." and they are gone haha. Just like that people start thinking 'these must be really limited'.
Noc seemed to fly like that too. Quietly disappear, then suddenly where are they? aftermarket searches ensued. I think V3's are that way now too, few retailers have them in any volume. I consider a deck that sells out in a year a quick mover though.