回複：如果打算住8-10年，索性倆個一起換，7-8千，

Now one is broken, probably another one doesn't have much life. Latest model air conditioner saves energy, less maintain fee, save the installation fee, less noise, plus add your house value. In Dallas, in general, $200-300/month electronic fee in summer. You can save a lot of utility fee with new air conditioner within 10 years. If you want to sale your home, new air conditioner is good sale point. good luck!