Actually, think of the Oracle as the GB with training wheels. It's part of the tutorial so you can build it to understand how a GB works and give it a try yourself. All of BA is a tutorial age. Why the sudden attraction to now camp there I'll never know. There's nothing you can get out of BA that you can't get twice as much of in IA. Despite the addition of the Oracle, this guide is not outdated. Follow the guide to get out of BA quickly, get into IA quickly, go guild surfing for BPs and coins, then build your first two (real) GBs as quickly as possible. IMO, there's no reason to camp in BA. None.