I've been playing sim city 4 for a few days just for the hell of it, and one thing that I really cannot tolerate is the fact that freighter trucks just vanish into the endless voids of simnation. They don't really serve a purpose other than to stress the traffic.
Which reminds me of other problem, there's no real 'specialization' in sim city 4, sure we have regions, sure we can connect regions, the problem is that only things that travel between those regions is ... sims. That's about it. You can have industrial cities, financial cities, and residential cities, but anything else serves hardly any purpose.
I guess I'm asking a little too much from a game that's about a decade old, but I would be lying if I said that I wasn't disappointed by the fact that cargos are pretty much non-existent and the so-called specialization is just... bland.
DRM or not, the fact that 'agents' actually carry around stuff and you can sell the produced goods to other cities of yours or even the global market is enough for me. I just hope they didn't 'butcher' the other aspects of the game beyond recognitiion. I can tolerate most things as long as it's still sim city.