1) To take advantage of its full potential, you have to sit in a very specific spot. There is a 'zone', and if you are not in it, you're getting a weaker experience. This is exasperated when...
2) It views weird at larger angles. ie: not a good group tv for the big game. Anyone not in the center is going to have a weird time.
3) It catches more glare.
4) They look stupid.