If the trading game was all that interesting, we wouldn't struggle to get a single Trader in so many realms
I think that most islands, probably every island except Dwilight, have little or no droughts and starvation. As long as your realm has two or three weeks worth of food, or possibly less if you were in multiple climate zones, then you really don't have to worry about food much. Dwilgiht, with seasons, food-rich regions and large cities and large weather-pattern areas, offers the most opportunities for trading.
