Scrumpmonkey said:
Theres a difference between "Too big", "To spread out", "Difficult to navige", "cloned landscape" and "nothing interesting to Do"
Case in point WoW. HUGE world, works fine. Lots to do and a dense ammount of varied maps to so it in.
WoW is a great example, I dont know how much total area it has but would risk 300-400 square kilometers. Mountains, snowed cap mountains, tundra, temperate marshlands, tropical marshlands, volcanic plains, haunted forests, enchanted forests, tainted forests, pine forests, foothills, prairies, deserts, salt deserts, fiords, glaciers, jurassic jungle, alien forests, alien deserts, asteroids field, farmlands, lake areas, alien marshlands, eocene like prairies, ice age tundras, hell desert, savannah, flood plains, rain forest. Not to mention the dungeons and the battlegrounds.