Typically, when someone throws around the 'apple fanboy' line, I just assume they are compensating for some deficiency and I move on, but I'll bite.
Your argument is basically that these machines aren't as great as apple products, but hey, you have to live with that.
That's basically like saying food is food. Sure, you can eat steak and chicken, but you can also opt for eating at McDonalds. You won't be hungry after either meal but that doesn't mean you won't suffer for the choice.
Sorry for calling you a fanboy, but that sounded like it.
What I said is that some ultrabooks are already great, and other ones are improving fast. The MacBook Air is not the best one in the market right now. And it is not among the best either. It's a nice ultrabook, but it's seriously outdated after 3 years with the very same design. Things change fast in this high-tech world, but Apple seems to ignore it. If I were in the market for an ultrabook, the current MacBook Air wouldn't even make the shortlist.
I don't see anything wrong with Windows. Everything I can do with OS X, I can also do with Windows. I have not yet found a single thing that I can do under OS X that can't be done under Windows. I won't be handicapped if I used Windows, and I don't think it offers a worse user experience.
For me, the thing is: I'm not willing to use outdated pricey hardware just because I want to use OS X. I prefer to use Windows on the latest hardware (as long as it is well-built and has the all the ergonomics).
I prefer the iPhone to any Android device, even if the iPhone has inferior hardware, because I think iOS is so much superior to Android in terms of user experience and polish. But I don't feel the same way about Windows and OS X. I think both are good and polished, and I just choose the one which has the best hardware.
Most people don't think this way. But good quality hardware is one of the reasons why people choose Macs instead of Windows. If Apple begins to fail to deliver superior hardware, then Mac sales will definitely fall (as they are falling right now).
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What you're saying is that it isn't up to par. That's not te same as late to the game. If that was the case then they won't be selling or they are losing. Clearly they are not
By the latest numbers, Mac sales are falling steeper than PC sales. Maybe people are just looking at the MacBook Air and thinking it's not worth it.
I have two examples.
My sister wanted a thin-and-light laptop. She thought of the MacBook Air, but then she opted for the Asus Zenbook, because she didn't like OS X and saw the Zenbook as as the similar alternative in the Windows world. So, she bought the Zenbook instead of the Air.
My girlfriend also wanted a thin-and-light laptop. She just loved the Air. But then she saw very compelling Windows laptops that looked the same and could be as useful. In the end, she bought an Asus ultrabook for half of the price of a MacBook Air and she's happy with it.
So, Apple should be willing to offer a MacBook Air which has something else that can't be found on similar PCs (apart from OS X), or reduce the price of it so it can compete in an already crowded market.