Mick Ronson is probably my all time favorite guitarist. He used one on "Heros" so yeah, I get what it does and it's appeal. I'm just not that interested in them. I have a Violin bow, no interest in using that a'la Jimmy Page. I'd probably be more inclined to use a Sustainiac system. I'm just not interested in holding anything but a pick. About as gimmicky as I get is a thumb pick. Only as it relates to playing the blues. It's great that you guys love them, but I'm surprised they are a thing.
FYI Heroes was Robert Fripp using actual feedback, not an ebow.
Fripp certainly did the lead part into a Fender Princeton with no Ebow. He marked places on the floor where he could stand to get feedback. Mick did the rhythm parts, but not the identifiable melody. Nothing gimmicky about an Ebow, any more than a chorus pedal. It is just something else people use to get another sound that is pretty impossible with anything else. Even a Sustainer pickup doesn't sound like one.