blame those who are warring, there are 126 theos atm and ~10 of those belong to alliances who are currently in war and some belong to 1-2 players tags and lots of theos are small untaggeds so maybe ~30 countries are selling tech and doubt that's enough to satisfy everyones needs.

10 theos are above 10m nw so those are major sellers probably and 28 are between 5-10 nw.