You are comparing the wrong units... the UltraBook is in competition with the MacBook Air... not the MacBook Pro.... the Pro blows the $1000 UltraBook out of the water.
I'm aware of the fact that the MBP is a fine machine but truthfully in every day use the Dell Ultrabook for $1000 will run fantastic and also has more ram than the MBP. It's not about running benchmarks and saying Retina this or that, it's about how much use you get in the long run for the amount of money you spend.
You can say that the Dell Ultra Book is a piece of crap if you like, but it's not. And it certainly has far better specs than the Macbook Air.
Macbook Air: $1499
13-inch
1.8GHz dual-core Intel Core i5 processor
4GB memory
256GB flash storage1
Intel HD Graphics 4000
Dell Laptop: $749
3rd Generation Intel? Core? i7-3632QM (6MB cache, up to 3.2Ghz)
Display: 15.6" High Definition (720p) LED Display
Memory: 8GB Dual Channel DDR3 SDRAM at 1600MHz
Hard Drive: 1TB 5400 RPM SATA Hard Drive
Optical Drive: 8X Tray Load CD/DVD Burner (Dual Layer DVD+/-R Drive)
Video Card: Intel? HD Graphics 4000
The Dell is clearly giving way more for the price. 2x the RAM, 4x the HD space, larger monitor, same video card. Plus you get this amazing thing called a DVD burner.
Look, If you feel like paying the extra money to buy a MBP then fill your boots. I get it. Some people want to buy a Ferrari and to pay extra for the status of having this extender, but for me I have seen over the years that Mac's don't out perform in the long run vs PC's when you compare Dollars. If you have found in your life that they do then go for it and get out your credit card cuz it's gonna hurt.