Assuming you have a suitable wheel for your weight and riding conditions, they don't go out of true if the spokes are properly tensioned.
If the spoke tensions are all over the place, the wheel is trying to become "untrue".

Properly built wheels stay true from mile 0 until the the brake tracks wear out or the spokes reach their fatigue life after many 1,000's of miles.
Putting X miles on them before truing is simply a waste of time. Properly tension & true them when you get them and you won't have to mess with them in the future.