Doesn't really matter all that much as fares are already not very competitive. For me, as an example, it is a choice between the already higher fares at GNV or lower, sometimes significantly, at any of 4 mainline stations, all between 30 and 60 minutes further. Typically we use GNV for award travel where fares are not that important, although capacity is. Many local travelers do the same thing and for some GNV isn't even an option.