Not to say I don't like them - I have a couple Dell boxes around - but they are not really on the same level here. And, with the Mac, I still have the option to run Linux. A Dell can't run OSX.
unless there is a compelling price difference, this doesn't look like a great deal.
If I wanted to run Lawsuit OS, I would be funneling my money towards a Cupertino based patent-troll.
As I'm not really interested in funding such ventures, I'm happy other vendors which has served me excellently in the past are giving me interesting options for the future.
Besides, it's not a normal Dell. It's Dell XPS. That's the premium line of products.
Ha! Tell that to my hackintoshed Dell Mini 10v :-P