Is there such a thing as a bicycle that doesn't need truing, or at least rarely needs truing? Always needing to get my bikes trued was what made me give up on cycling. It was a pain arse. Although they were road bikes that I cycled like they were dirt bikes so I probably can't complain much.
I have to say, none of my bikes need regular truing. I'm a heavy rider, and only ever had two wheels trued in 7 Years.
One was a new rear on a roadbike that kept popping spokes until it was trued, been fine now for nearly 10,000 miles.
Also had the front done after it was buckled after a crash.
Never had to true a MTB wheel, although they don't get a vast amount of use to be fair but they do get hammered when I do use them!