Sorry but you're very much incorrect. Read up on these issues before you post. Read "The Story of Stuff", a very enlightening 10-year study on North American capitalism and the impact our way of life has on the environment. It'll open your eyes and you might think twice about "yawning" and dismissing such comments.
No.
There are far greater issues threatening our planet right now than Apple TVs going into landfill. And anyway, most of the original Apple TV is recyclable and the PCB's contains valuable minerals & metals - there's no reason why they would be just thrown on a heap.
What exactly is it you would prefer Apple to do? Never bring out new products? Retro-fit old products to new ones?!
And before you talk about our impact on the environment, I'm from the UK. We're far far from perfect but we're destroying the environment at nothing like the pace you lot are.