San Andreas has bikes and cars... It's designed so you will speed past the scenery and only focus on towns and buildings. Even IF San Andreas was bigger, it felt extremely empty. The size of the land in between Towns, etc. just felt like a pointless expanse to brag about on the back of the game case. Oblivion has dungeons, travellers, camps, bandits and 9ft Ogres to worry about while travelling through the thick woods... Without a moped.