I absolutely agree with the Active 3D glasses. Ive tried watching a movie with Active 3D glasses, and I felt like I was getting motion sickness due to the flickering. I don't have a LM8600 model, but have a LM6700T model and it is great. One of my friends does have a LM8600 and it looked great. I don't think you would be dissatisfied with any of those models. I guess it just really depends on what features are important to you and choose the model.