[null and void]

Actually, according to most technology experts, the Zune was/is, technologically, a vastly superior MP3 player to the iPod. It failed

Just like BetaMax and 8-Track...

[adorno]

Just like BetaMax and 8-Track...

That's proof positive that, you refuse to look at the real world, and instead, you have tunnel vision, and you can't see anything beyond your narrow scope of thought.

8-Track was popular for a bunch of years, just like the iPhones and iPads have been popular for a few years, and, just like the example you picked, they will have been popular for a few years, having been replaced by something superior, like the Windows 8 gadgets, namely WP8 cellphones and Surface tablets. But, like anything else in technology, even those will be popular for a few years, to be replaced by the next "big thing". But, you haven't been paying attention, apparently, to notice how that's the way of technology. Try to keep up.