erhmmm.....in my opinion blaming the engine is a bad approach. Suppose anyone from this community gets the full commercial unreal 3 engine, what are the chances that he will create a great game? imho, the chances are low, and all because there are not so many people here who are skillful enaugh to get the benefit from all the cool stuff. Not many programmers are able to make some authentic and creative artwork, not many artists are good enaugh in scripting to implement all the physics, shaders, etc. So I think that the top level on 3dgs is not the AAA game, but a gameplay-oriented game. And I think that A7 already has all (at least enaugh) tools to create a thrilling game. Just look at AAAaaaAAA!!! or eghm (O_o) some other games whose names I don't remeber. Why are the games on Unity so good? My opinion: because the artists are very talented professioanls (maybe a bit off-topic here). So heads up!
Conclusion: look forward for A8 but do not give up on A7....