Well, for those who lost theirs decades ago, or who never had one in the first place because their parents clearly hated them, now you can get a Masters Of The Universe Collector's Choice Snake Mountain Playset. It's 36 inches high and will cost you $600. Which is a lot. You could probably hire Dolph Lundgren to come to your birthday party dressed as He-Man for $600. And by the way, this is only for the set. Action figures and small children to justify your purchase aren't included.
Sadly, the original toy's microphone that distorts your voice (and if '80s TV is to be believed, recruits you as one of Satan's minions) isn't part of the new set. But the level of detail is far greater than the '80s version, and it could be all yours if you simply decide not to pay rent for one month.