Even Apple has it's iPod shuffles alongside it's other models as an entry to their line, though. Perhaps D&D needs an entry game that is not compromised as an obvious bait and switch for an upgrade.
Basic was similar to AD&D, and AD&D was a lot more like 2Ed. None of those was similar to 3.X, and 4Ed is as much a departure from 3.X as 3.X was to those that preceded it.
IOW, while Basic or AD&D could be seen as an entry level game- its not likely but its possible- re 2Ed, none of that would fly with 3.X or 4Ed.
No...what they'd need is some kind of quick-start rules, or perhaps a setting neutral adventure pack that includes pregens.
Heck...we're talking WotC. The pregen PCs could be even be released as a randomized collection, 6 to a pack. With uncommons & rares.
For whatever reason, it hasn't really had that since the red box, and as a result people detect an incomplete game and won't recommend it by word of mouth. (I think 4E itself is subject to this criticism, arguably.)
Well, I won't say you're wrong, but I never saw that as a problem- except with 4Ed- since I was perfectly willing and able to initiate the uninitiated myself.
With 4Ed, the perception of "incompletion" is largely due to the absence of several classes & races that had been in the game since the 1970s. While this in no way made the game incomplete- its perfectly possible to play D&D without Druids & gnomes, for instance- it meant that it was perceived as so by the installed market base...especially in comparison to the game it was supplanting.
For some, this was no problem, but for many (like myself), it was a
huge deal. And those people are NOT going to recommend or run that "incomplete" game.