I had a powerjet, which is essentially a Duo with higher output pickups. Mine had a Bigsby. It was a great guitar.
The way I explain it to most people, is that it was a great guitar, but it wasn't something I could see myself playing often enough to justify keeping it. The tone was so distinct, I either wanted it to become my main sound, or I was almost using the entire guitar as an effect on 1 or 2 songs.
If you think the Gretsch sound is your thing, it could be a changing moment in your playing. I know more and more people are rediscovering Gretsch and what kind of tones they can bring for more modern styles of music, while still sounding old school. The only way to find out is to own one though.