I've never owned a Mac, although I've worked on them and I have always respected Apple for creating things that are relatively bug-free and are pretty much off-the-shelf (compared to MS anyway). Most of the things that MS have brought to the software world have had problems. Yes, a lot of what the Mac/PC adverts say is valid as well (although flawed in its reasoning, you never got many games for Macs for exactly the same reason that you get more virii on PCs), however I also take exception to many things Apple related. Their environmental impact, their "it's really cool" approach (far from just being peer pressure, it means that people who have no idea about computers don't bother learning, they just buy it, I hate PC World for the same reasons), etc.
Unfortunately Apple have now taken away my respect, by doing exactly what MS does with every release of Windows. They haven't released a finished product, the product (as usual from them) is overpriced for what it is, and it's just not that good (even if the UI is fancy).
Lastly, the peer pressure argument of "would you jump off a cliff if..." is used in completely the wrong context above. It should be used to teach children not to give in to peer pressure. Whilst I don't see any kids jumping off cliffs, I see plenty smoking and drinking, which I'm sure is in part down to peer pressure and at their age (qualified for the drinking) it is just as dangerous as jumping off a cliff. Peer pressure exists, which is why most kids have mobile phones these days (even though the majority don't use them except for texting friends who live round the corner), and Apple relentlessly release products that are aimed at working their way into the subconscious of society.
I fear there's a more sinister angle to Apple's marketing. Guinness created adverts years ago with the idea of embedding their brand name into the children's brains. Maybe not inclining them to buy it, but making the name known so that when the kids grow up, the first name that pops into their heads when they take those 3 seconds to decide what to drink is Guinness.