Have your appliance ever broke? Are they on a warranty? People should think about this because you they should know what best for them. To fix the old appliances, or just buy a new appliance and do not have headaches with the insurance companies and with the worker.
Spending money will happened eather way, it's all depends on how much money you will be spending. Number one thing you should definatly find out how much of a probloem you have with you old appliance. Number 2 is to find out how much is the new appliance cost.
If you don't know of how much of demmage your appliance have, you should consider calling a repair man. The repair man will help you and tell you everything. The prices and the cost of the parts and everything about your problem.
It is up to you compare the prices of the brand new appliance and the price of the appliance with you already have. The cheaper the better. Not always. Sometimes the appliance are $10,000 and $20,000. Some of the companies with are comming out with great new technology appliances are expencive.
If you have one of the expencive appliance, you should definetly call a repair man to fix your problem.