I haven't had a car payment in ** years. Keeps me from buying something I don't need.Generally speaking, I don't care how other people spend their money, but it's all relative. The money smart rule is not to let your car payment get over 10% of your monthly net (take-home) pay. Net pay should also factor in retirement, college savings, etc. The further you are from the 10%, the closer you are to "damn, I really can't afford this".