I am trying to buy a TVS Scooty here in Bangalore. The dealer is offering an installment scheme for the vehicle. The dealer is also offering me a choice of paying the full amount and buying the vehicle. How do I go about evaluating whether should I pay the full amount and get the vehicle or should I choose his installment plan. I am sure some of you have bought things on installment before and I am curious as to how you decided. Thanks for your input.