Hi Andrew,
I still like working with a view camera, mostly 4x5 and 8x10. However, in a similar vein, I too am searching for a potential supplement to shooting film, not a full replacement.
Lens movements like tilt, swing, rise and shift ARE important for me, notably rise/fall and tilt. However, the cost is the prohibitive factor in my case.
For me, the most direct camera comparison would be a camera like a Linhof Techno or Cambo Actus.
While I'm not against the sliding back, some of these newer backs with CMOS sensors are better for live-view focusing on-screen. However, that tiny (compared to 4x5 or 8x10) ground glass just makes it more impractical. In a studio environment, where you're in a covered area free of wind and rain, then a traditional view camera works well.
Eward Burtynsky had some interesting points in this video linked below:
https://www.youtube.com/watch?v=bkzMqAUpE3sThe DOF requirements for a MF sensor(or 35mm) allows for much more images to be created, since you don't need to stop down as far like you do with 4x5 or 8x10.
But movements might not even be necessary, depending on the images you like to make.