Ok, the display specifications on the dell website irritate me a little.
The specifications for the vostro displays does not show the brightness and
contrast rations between the WXGA and the WXGA w/ true life.

The WXGA (no true life) is an anti-glare screen with the same viewing
angles. So all that remains is the brightness/C-ratio, which would trump
reflectivity issues if they are substantially higher with the true life.

Where do I find the brightness/contrast ratio specs?