Sure there is a price premium attached to Apple products (just going to focus on computers/OSX here), and you may not get all the features that you might expect in that price range (my first macbook didn't have an SD card reader, at a time when my last 4 years of pc laptops had all had one built in)... but in general the build quality is very good, the price of an equivalent laptop isn't that dissimilar once you start adding in options like the ultra hq screen, and finding a super slim light weight laptop)
the warranty and instore support is unsurpassed
and it's just a much better OS than windows
I have linux running on other laptops - a guy at work even boots and runs Mint on his MBP, OSX just worked and works out the box. My Lenovo edge (ultrabook) - it doesn't sleep or hibernate properly, his mint/mbp install... brightness and volume adjustment doesn't work from the keyboard...
Yes you can have a linux equivalent that works almost as good for a much lower price, but if you value time over money, and can afford the premium for something that "just works"...
I like OSX and Linux. It pisses me off that if I want to watch sky go, or even my slingbox, I have to jump through dozens of hoops under linux to get it working (using stuff like wine and xbmc scripts, that aren't guaranteed to work seamlessly or keep on working through updates). On my Mac (as with Windows)... it just works, but more importantly, it is supported and so much more likely to keep on working. Sure that's not Linux' fault, it's just a reflection of market forces and popularity - but it's yet another thing that for OSX, it "just works"