Trackers and samurais are fairly miserable on the road though. An absolutely insane amount of wind noise above 40 (at least on the samurai). I loved mine, but I'd never pay more than 5k for one unless it's completely swapped out with a better engine, axles etc.
As someone pointed out, the point is that they were cheap, as there's effectively no soundproofing or, well anything. Everything is cheap metal.