That's how I felt when I first got my E92. This was my debut post with the forum regarding the same:
http://www.m3post.com/forums/showthread.php?p=8822738
Now, after 5 months, I don't think I would go back. It's just so fast and the engine is incredible. I haven't even begun modding yet (waiting to see if I get a new one). If I could have BOTH, I would. I still love and miss my E46 M3.
The two are among the most coveted cars in history.