I've never had to true good quality wheels either. Only wheels I've had go out of true were very cheap ones I used as a teenager back in the 80s. I beat the crap out of a set of Mavic Crossmax XLs from 2004-2014 and checked them on my mate's wheel jig every winter and they never needed any tuning. With premium modern carbon rims (road or mtb) it doesn't even cross my mind.