My 2011 X3 35i MSport is nearly identical to the one shown in the article. The only difference I see is neither set of wheels that I have are the same as the ones shown, this being a 2012 model and the MSport wheels are differnt. I prefer mine.
I have about 16,500 kms on mine now, having bot it in May '11. I just returned from S.Calif where I put on a total of over 8,500 kms driving down and back and two months of urban driving down there. I averaged 10.6l/100 for the entire trip, including both down/back and urban. The hiway travel was just excellant in the X3, powerful, comfortable and easy to drive as fast as you need. The sport seats do an excellant job of holding you in place, and rival the sport seats in my previous M3.
I do not think adding another nanny system for blind spot is necessary. The X3 is about 183 ins long, and has good rear and side visibility. If you cannot set your mirrors properly, take the bus. Jeez.
As to the extra price for certain paints, this is a common item for most German and other makers, and you will encounter it often. Not a biggie in my opinion.
There are those (few in NA but many of them seem to be on forums generally) that prefer wagons, but unless you have actually driven the new X3 extensively, you cannot know how good it feels from reading the spec sheet. Wagons just do not sell well in NA, for whatever reason. I have previously owned a 328xi wagon and can see their appeal, but again, the market does not agree.
Yes, it is expensive, so are a lot of vehicles. For a family of (say) four or five, a van may be a better choice, enjoy it. I find my X3 35i to be a great combo of practicality and fun for year-round use.