I just described why they could get the term Vice City as a trademark. Off course companies will try to sue. And they might even win in court, due to some stupid bureaucracy or better lawyers, or they handle this out of court. There is an entire industry around the idea of trademark-trolling. Meaning some bad companies trademark or buy trademarks just to sue everyone in any shape or form. So yes, if Tiffanys doing that, then they are trolls, but it does not mean everyone else is doing it.