Basically, the 2011 model looks the same as the 2010 model. But the 2011 model has substantial improvements in performance and interior quality. Only MKX 2011 model is fully competitive to other crossovers on the same level.The pricing you got is beyond being good. Don't think about the 2010 model.
Lincoln MKX's resale value is not good, especially compared to others, such as Lexus RX 350, BMW X3,Volvo XC60, etc. The reliable rate is low as well. But the maintainance cost is as low as other American made cars. And also it uses #87 gas while others use #89 or #93.