A mechanic told me to have my wheel alignment checked.

Question from visitor, 08/01/2010 :A mechanic told me to have my wheel alignment checked. Is it really necessary or am I being taken for a ride?
Answer by rezulteo, 08/01/2010 :

Have your wheel alignment checked after any serious collision. Those who rack up a lot of mileage (over 40,000km/annum) should have their wheel alignment checked annually. Uneven tyre wear is another sign that your tyres should be realigned. Bad wheel alignment can cause abnormally rapid and uneven tyre wear.