http://www.samsung.com/us/video/led-tv
A high end Samsung 40'' cost 1,499. You'd get 2 more inches plus Apple features.
It's true that highest end Samsung you've cherry picked retails for $1499. But what you leave out is that the MSRP for televisions is not the price that the vast majority pay for those televisions. That TV is barely available yet, so retail is still high but several hundred dollars below MSRP (already):
http://www.leiberts.com/temp/Samsun...lebase&utm_medium=comparsionshopping&aff=5112
The very best rated Samsung 40" that has been out for a while to gauge retail pricing (normalized) is model Samsung LN40D630 which is available for as little as $649 though it's MSRP was much higher.
The point being: it's easy to start cherry picking MSRP's to justify a hypothetical price for an Apple product. But, if that would turn out to be Apple's price, THAT would be the price, probably until the next generation Apple Television is rolled out. I bet hardly anyone pays that $1499 for that Samsung you identified. In fact, I bet within 30-60 days of it being available in lots of retail stores, it's average price will be about $1000.
Furthermore, if THAT Samsung is representative of the quality of 42" we should expect from Apple, and if we can believe that Samsung's MSRP you reference is not THE price that most will pay for it, why not just buy THAT quality Samsung plus $100
TV to get the exact same Apple software experience and save a few hundred dollars?
OR, why not buy a bigger HDTV at that high-quality level plus an
TV for about the same as Apple's 42" HDTV with
TV built in (plus an apparent requirement for an iPhone or iPad to act as the remote... or main remote)?
These are the kinds of issues that make an Apple Television NOT like Apple innovations in computers, music players, phones & tablets. Theoretically, the software that makes each of those innovations special is not necessarily going to be similarly- AND EXCLUSIVELY- available only within this hypothetical television. Thus, the buyers will face paying up for an Apple branded hardware + software combination or paying less (or getting more) with someone else's television + $100
TV3. OR, just spending the $100 and getting the exact same software benefits on the HDTV they already own.