I guess it depends how you define marketing... but product is one of the four p's of marketing (along with price, promotion, and place). And Apple's products also possess an unmatched level of refinement in design, material selection, and software elegance. The new Mac Mini is a perfect example. The new iPhone is another. The iPad another. Only Sony can come close to Apple in hardware, but Sony is saddled with Microsoft's crappy bloated OS. No other computer manufacturer I've encountered can match Apple here. So its' not just marketing fluff.
Now the Mac Pro is lagging in specs, at least for now, but it's internals are still a marvel to behold for anyone that's ripped open a PC, or even built their own PC with a mind for cable managements, silent cooling, and overall aesthetics.
So it's more than marketing.
Let's face it, if there was no appeal to owning a Mac, no one would be in here whining about the product, they would just go and buy a PC.
Umm...the part about just going and buying a PC? That's exactly what the vast majority of the people of the world do. Windows is over 90% market share I believe?
The stuff about software elegance, design, material selection? All kool-aid. May I ask what your profession is? There is no magic in Apple software. More "elegant" is absolute rubbish. Yes they design nice looking machines, often at the cost of functionality (read current iMac's and even Mac Mini's...core 2 duos still??). Their material selection for the innards is below the quality of what you can get in parts purchased at Fry's for PC. There is no way an Apple OEM board compares well to an Asus, Gigabyte, or EVGA board. You really should check out the difference. Again, you show fanboy colors by calling Microsoft's OS "crappy and bloated." Windows 7 screams (to use a Steve Jobs favorite). Have you used it? It runs faster than Snow Leopard on Apple's own hardware, and is very well done. Not sure where you can even begin to call it "crappy and bloated" considering it beats SL for speed and functionality. Maybe not GUI attractiveness, but that's about it. It sounds like more fanboy ranting, and not really reasoned analysis.
Obviously you are free to believe what you want, but there are a number of things that Apple is not doing very well, and certainly worse than others. But they do have wildly successful marketing and branding to back up nice looking products. That's really what it comes down too. They are able to get a very small segment of the population to buy their stuff and pay way more than their real value. Heck, I'm in that group, the difference is I am willing to admit I overpay for it, and that they fool a lot of simple minded people with marketing that appeals to ego and superiority complexes, and I know it's all bunk. It's ok to admit you like Apple AND that they do some pretty messed up stuff. It's just "things". It's not who YOU are as a person. No need to vehemently defend them when they are ripping people off, or doing a poor job in some area.
P.S. I've built tons of machines and owned Mac Pros. The innards of the Mac Pro are not a marvel.