Research how good/bad the BMW service in the country of your residence. If it is good, and they offer loaners, road-side assistance, etc, I'd consider it. The early 2007 models had lots of bugs, so expect to see things break down (thus you need to figure out how easy it will be for you to service it !)

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His : 2013 X5 3.5d Deep Sea Blue/Black/Aluminum with ALL packages, 20" 214"s, running boards, Adaptive Drive, Spare Tire, BMW Apps
On Order : 2016 X3 3.5 MSport Silver/Mocha with DHP, CW, Prem, Tech, DA, Lighting

Hers : 2015 328xi MSport Silver/Red

Prior:
2008 X5 4.8
2011 X5 3.5d
2010 335 xDrive
2013 335 xDrive