I don't "need to", at all. It's an option. The car has 127,000 on it now. It's been spot on reliable. The POS Cruze it replaced cost me $7k in repairs between 50k and 85k miles. The VW has cost about $1200 in routine maintenance in 127k. To give an idea, the timing belt replacement costs me $800, and only needs done every 120k miles. My wife's Chrysler is every 80k, at about the same cost. Trans service is every 40k on hers, at a cost of $140. I do the DSG myself, same cost and mileage. Aside from a $20 fuel filter every 20k, I'm coming out cheaper per mile.