Glue or screw the inside skins...pro and con

I'm finishing the wiring in the insulated walls today and need to get the inside cabin skins in place to start fitting the back cabinets. Right now, the skins fit real tight against the floor and headliner...and with the front shelf, cabinets and door trim...I think the skins will be tight enough that I wouldn't need much of anything to hold them in place. Along those lines, I could either:

I was trying to get at the pros and cons of whether to screw or glue...
The skins are 1/4 inch birch. Any other pros and cons that I should consider?
- 1. glue the skins in permanently, or
2. use just a few strategically placed decorator screws to make the skins removable
I was trying to get at the pros and cons of whether to screw or glue...
- 1. Glued in would be a cleaner look,
2. Glued in would be more air tight,
3. Srewed in would allow for future access to wiring,
4. Screwed in would be simpler to do
The skins are 1/4 inch birch. Any other pros and cons that I should consider?