Depending on size and type, a fridge can cost as little as a new laptop or as much as a spa pool. Regardless of choice, a fridge-freezer is always running. While month-to-month you might not notice the impact on your power bill, this cost adds up over the long term. Our analysis shows an extra-large french-door model costs upwards of $5300 including the purchase price and running costs over 10 years. This compares to a medium-sized bottom-mount that costs $3300 on average. That’s a difference of $2000 — so are you still sure you need all that extra space?