agree. it really depends on how much you actually save. If it's only $1-$2 a month, then i'll rather sacrifice having my teh-o from the kopi tiam to save on the hassle of turning off the main power.
its easier to clean glossy as opposed to matt because the surface is smooth.
however, fingerprints will show up clearer with glossy than matt.
what type of look are you trying to go for?