Rangefinders went out of style not because they were inferior, but because SLRs had far superior sync speeds (in comparison to the Leica or Contax), were more securely sealed to the elements, and because they gave exact views of the scene. Rangefinders have never fallen out of use, they are just a minority among photographers. Leicas have always commanded high prices, and the Olympus XA was a milestone rangefinder camera due to its extremely compact size.
The rangefinder camera is in use by more professionals than amateurs, because SLRs are marketed to amateurs. The Mamiya 7 and 6 are phenomenal cameras, unmatched by others in terms of flexibility and size in their class. The Plaubel Makina 670 is a great camera as well. Others include the Fuji G690/980/670/645 series, the Zeiss Ikonta, the Voitlander Bessa II, the Voigtlander Bessa 667, the Bronica 645RF, Hasselblad Xpan, Polaroid 110A/110B, and more.
And let's not forget the new Voigtlander R series cameras and the reincarnation of the Zeiss Ikon.
I still believe the EVF is a cost cutting feature whose place will remain in entry level and lower end, non-professional camera systems.