need to replace my old CRV. I don't like the rear of new CRV and plan to buy 2015 RAV4. One local dealer gives a deal: $24100 for 2015 4*2 XLE. Although it is a little higher than some shared prices in autopriceshare, I feel OK with the small price difference. The only question is the Navigation option. The Native Navigation cost $561. However, the Garmin only costs $100. What is the advantages of the RAV4 native navigation? Should I choose this option? Thanks