Well,
I have to say that the Baader Hyperion 8-24 zoom + a barlow has pretty much cured my eyepiece fever. Not looking and not shopping anymore. And my other eyepieces, shorter than 20 mm, now stay in the eyepiece case most of the time. In my Orion XT8i, from about 67X to 300X, the zoom or zoom + barlow is all I use.
So the guy was right! (Never did buy a binoviewer)
I AM CURED!