Maybe, and I think there is, levels of 'glossyness'.
There is, museum glass, which is more expensive than ordinary glass, has virtually little reflective attributes. Would be a very suitable iMac replacement, but of course that leaves out the rest of the product line, plus glass is sort of dangerous in a laptop anyway.
From Wikipedia: Glossy Displays
Traditionally LCDs have had a matte anti-glare finish to scatter reflected light. This has the side effect of scattering the light from the display, increasing blur and reducing contrast ratio, colour intensity, and viewing angle.
Glossy LCDs use polarization and an optical coating to reduce the amount of external light reflecting from the surface without affecting light emanating from the screen. Reflections of external light sources are not diffused by glossy displays, so certain lighting conditions tend to favor a traditional, anti-glare screen. In controlled environments, such as darkened rooms, or rooms where all light sources are diffused, a glossy display may be more enjoyable for the viewer.
Glossy displays create more saturated colours, deeper blacks, brighter whites, and are sharper than traditional matte displays. This makes these types of displays more appropriate for viewing photos, watching movies, or even just general computer usage such as web browsing. Also, in extremely bright conditions where no direct light is facing the screen, such as outdoors, glossy displays can become more readable than matte displays because they don't disperse the light around the screen (which would render a matte screen washed out).
Despite the perceived increase in the quality of glossy displays, they tend to exaggerate colors and shade, to the point in which they over-saturate and have poorer grayscale accuracy.
This makes glossy displays unsuitable for people who seek to use their computers for graphics work which requires color accuracy. This is why detractors claim that glossy displays are used as a marketing gimmick.
Also, due to the reflective nature of the display, in most lighting conditions which include direct light sources facing the screen, glossy displays create too many reflections which can be distracting to the user of the computer. This is especially annoying to users who work in an environment, such as in an office, where the position of lights and windows cannot be avoided and thus create strong reflections.
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"glossy displays create too many reflections which can be distracting to the user of the computer"
Distracted users are less absorbed users, which leads to less computer use and interest.
Apple should at least offer a choice of either matte or glossy in their entire product line. Or find a way to eliminate the reflections.
