Faulty ignition coil... again!

On my Dart 1975 I had to change the ignition coil in August 2015. Now two years and not even 3000 miles later, again, the damn coil was faulty. This time I bought the most expensive available at Rockauto hoping it will be more durable. But I wonder what you think of that, if I changed two, it's just bad luck or if I should check out other components which explain this. Thank you for your help and advice.

With zero details, it's impossible to tell. Stock electronic ignition? Are you running the correct ballast resistor?