It is well known psychology that blokes especially feel obligated to justify their purchase if the price tag seems a bit on the high side. You know, like when you paid $10 for a CD and your mate says, "Could have got that for $9.25 down the road." You say, "But you want to see the chick who sold me this CD for $10, it was worth the extra." You know that is a BS argument, but that is how minds work.
The thing with Macs though, you pay a bit more than you would for a PC, but you have undeniably got your money's worth, so you can keep quiet, albeit smug. It really can do all the things that the Cupertino marketing people flogged at you. And when people cant work out where the CD tray is, it would be rude not to indicate a slot loading drive. And when, in my case, my housemate dumps a tin colored paving slab on the desk, and says, "Doesnt it look like a Powerbook" and then fires up the turbines, why shouldnt I be able to just open the 5mm thick lid on my 1" thin computer and wake up 23 projects while PC man prioritises which essential software he is going to download from Kazaa because his Mac lookalike came preloaded with basically nothing of use.