Change all hoses?

I have a '99' Intrigue with 133,000 miles and was thinking of changing all of the hoses - rad., heater, etc., along with the therm., and anti-freeze. I've already changed the water pump and serp. belt.
Has anyone done this yet as P.M. or do you wait till they fail? They look fine from the outside but I've heard that they may deteriorate from the inside out.
Thanks, Bob

Hoses now A-Days are a thousand times better then the they were 10 or 15 years ago. I would say if it an't broke don't fix it. If I were you I would change the upper rad hose and that would be it. Why the upper hose cause it get's most of the heat from the engine, the lower hose gets the cold fluid cooled by the rad.

Thanks Rolm.