Too much of it depends on who's building the wheels. I have a cheap, heavy pair of [assuming] machine built wheels from Performance Bike that have stayed remarkably true for the last 12-18 months, every bit as true as my hand built HED wheels. I've also had machine built wheels that came with my Giant Propel go out of true in a matter of weeks. I had a hand built set of wheels from a local shop do the same.
I honestly couldn't say that I trust either any more or less than the other, it just depends on who's doing the building.