Has your appliance been very reliable in the past?
If you have been lucky enough to have an appliance for over a decade before needing a repair, it may be wise to put some money into it to keep it going. Many times the repair is inexpensive but remember at some point, replacement parts for your appliance may become no longer available. Hopefully after a repair you won’t have to worry for at least another decade.
Consideration of the repairs cost should be taken into account. Generally, any repair that costs more than half the price of a new product is best avoided. For those costly repairs, the added savings of buying an energy efficient appliance will make more sense.