I have been using Macs at work for magazine and card design and publishing for about 12 years. I don't buy Macs because they look nice (and, by and large, they do) but because I need them to work ... all the time.
In those 12 years I have NEVER had a virus (despite having no McAfee, Norton or any other proprietary virus barrier) nor have I had a machine breakdown (even the ones I didn't like!) and most of the macs we have bought are still in use. I've had system crashes (or kernel panics) caused by peripherals but I can count these on one hand.
Currently I use a Mac Pro at work. I think it looks like a giant cheese grater but I know that if I need to I can just pull a lever, open it up and slide in a new drive. Easy. I don't need an IT Department.
Three weeks ago I spent nearly £2,000 on a Mac for home. Because I waited for the introduction of a new model I paid the price of a less favourable dollar/pound but that had nothing to do with Apple. I could have bought a PC with similar specifications for a couple of hundred pounds less (yes, that's all). But I bought a Mac for two reasons ... one, I'm comfortable with the OS and ... two, I want the machine to last at least 5 years because two grand is a lot of money. I DO care about the looks ... to me, good industrial design says a lot about the care a company takes about its products.
Finally, I'm lucky enough to be very near to an Apple Store. There I can get free advice and free training from people who know about the goods they sell and a second-to-none service which, frankly, I have found astoundingly good. If it's a marketing strategy from the USA, fine ... it works and I'd like to see more of it in the UK.
The perception of Macs is that they are expensive but that argument really doesn't hold up well when you compare specifications and service.