Probably because most apple fans are brainwashed idiots. Apple fanboyism is like a religion for some. You cant really compare a small company and a hobby platform with one of the biggest companies in the world.
You are worse than the Apple fanbois though... at least they have real products that work and are innovative.
I don't like Microsoft, but I can't deny that they managed to basically get everything right with their spreadsheet package for example, that is something no one else managed to do... I won't talk about the latest version, as they did something horrible with the interface... but my point is, you don't have to like Apple to submit that they are really good at some stuff. The iPhone, wasn't the fastest, most feature rich phone when it was released, but it ticked all the right boxes and totally changed the smartphone market... the same for the iPod, and even the original Mac (think the Amiga would have been GUI based without Apple?).
I don't need an iPad, there is no really gap in my computing life that needs filling with such a device, I'm a computer guy, you're a computer guy, we adapt to technology. But it is easy to see where it would fit in to the average person's life, someone who doesn't want to move to the technology, they want technology to come to them and make their lives easier.
Also, Apple have let me realise a dream I've had for nearly 20 years... It's not much, but I have had a game published and is now available to 75Million people! The iPhone made that happen.