
Watch the commercial.

"So, what is the average life expectancy of my carpet?" you as, or "How long can I go until I replace my carpets", "What is 'too old' in terms of carpet?"
All good questions.
The answer varies, but by most carpet manufacturer's standards, 8 - 10 years given good user maintenance. What does that mean? The biggest factor in life expectancy for your carpet is, quite frankly, the same factor in your life expectancy...you. How well do you treat your carpets? Well, if you're like most people, you walk all over them! (Sore attempt at a joke. Sorry.)
Seriously, if you smoke two packs a day, eat at McDonald's three times a week, have a Venti Mocha Frappucino with whip and two shots of espresso every morning and never hit the gym or the green and leafy side of the buffet bar...it's realistic that your life expectancy is less than average. A doctor's visit becomes more of a 'band aid' for symptoms...as opposed to getting on the health track and preventing problems down the road. You know what I'm talking about and media is pushing it all the time, let's say it together aloud, "Preventive Medicine". Exactly. Same scenario with your carpets, they depend on how well you take care of them.
How do I extend the life of my carpet?