I got a coupon for a 9.99 dealer oil change so I went in and got an oil change. During the oil change they noticed that all four of my CV boots are cracked and recommand that I get it changed as soon as possible. Is it that important?

I was just in the dealer a month ago for the 90K service and timing belt change...etc all that stuff and this wasn't mentioned... Weird...

Anyways, it'll cost around $450 to get all of it changed. Just need some advice/comments.

Thanks,