There are many more comments like this.
Take the iWatch, some will not wear a watch, but without even knowing what it will be they discredit the product.
As with all technical products , the first generation is expensive, Then the entire industry switches , capacities are built up and the economy of scale makes things cheaper.
So, eventually the masses will have 4K cinema sets in their homes at affordable prices.
In the meantime those who are not early adopters or do not have or do not want to spend the entry premium for new tec will just have to wait and complain.
I'm not discrediting anything, nor am I suggesting that wide adoption of 4K (cinema or 16:9) will not occur.
I just think it's not fair to criticise people for not being forward thinking when it's not exactly clear if Apple has a plan in place for ANY of these products. iWatch, TV, etc. haven't even been announced, yet we assume that they exist AND Apple has a roadmap. While likely they do, it shouldn't be up to the consumer to figure out why they need a product that doesn't exist.
If Apple can tell me why I need to spend $5000 on a 4K cinema screen and it is justifiable, then great! But like others have mentioned, for $500 (actually BB has a 50" TV 1080p today for $400!) I am not sure, early adopter or not, why someone would pay an extra $4500 for something that cannot be utilized given today's output devices. Like I posted yesterday, motion sensoring, like cinema 4K displays solves a problem that currently doesn't exist.