To chime in late, we live on the IL/WI Border.   We have had lightning strike 3 houses down.  3 pole transformers replaced in our back yard due squirrels.  Had a number of power outages the past 15 years.  I must say, we have NOT lost any of these pieces of electronic equipment.  Refrigerator, washing machine, Dryer, dishwasher, furnace, and AC unit w/o any protection, are still working.   We get surges every once in a while too.  
I have 5 Surge Protector Power Strips, at 5 different outlet locations in our home, with 2100 Joules each.  But, one of the Surge Protecters is around 4000 Joules, for TV, AVR and Satellite receiver. All Belkin protectors.