Yea that's what's I thought, but Helix is 1000 USD more than HD500X so I was kinda hoping there would be some kind of... lite... version of Helix to replace HD500X in the same price range. Purely hoping and speculating. For example, without touch screen and stuff.
But then again, they wouldn't want to shoot their own leg by doing this since no touch screen would make 1000 USD price different believable.
Maybe you're right, maybe there's no replacement model for HD500X series in sight, within that price range.