I think there are times when a 3D interior view is a nice thing to have, like when the boat is in a fast dive or is pitching left and right. That would be pretty cool to have in a modern sim like DW/SC, but, as stated before, it's not really necessary. In SH3, however, where the combat is ship vs. sub at close range, i.e. depth-charge attacks, the 3D view actually adds more than simple eye-candy. When all you can see is the inside of your boat as it gets tossed around and the lights are going on and off and pipes start bursting, it enhances the gameplay experience a great deal. In my opinion, modern subsims wouldn't have much opportunity to use those type of effects, at least not realistically.
(Besides, when in combat in DW, you really shouldn't have time to look around the control room anyway

)
But, because there are those who really would like a more "immersive" experience while playing DW, I offer a few suggestions:
1) Paint your office, bedroom, or wherever your computer is, completely grey and decorate with various mock-ups of panels and displays and such.
2) Attach your chair to a sturdy base with a small hydraulic power-pack and two or four cylinders to simulate your boat's movement.
3) Have a friend or neighbor stand by to shake your chair when you take damage, or in the event you're destroyed, have them throw a bucket of water at you as fast as possible.
These are just a few ways to improve your experience, hopefully this helps.