I usually don't buy anything new right out of the gate. Particularly pro-class cameras ... I usually wait until they get well into the market, until the issues and workarounds are known, until the prices drop a little bit.
I usually wait until my image processing tools can handle their raw files.
The Olympus E-5 manual is in front of me. The battery is on the charger.
I listed an order for one yesterday on Amazon but their vendors had already sold out the first shipment. No biggie, I'm patient. Today, the local store called and said, "We have one for you." I went up to see it, dickered a little on the price (sales tax here would be almost $160), we came to an agreement, and I just arrived home with it.
Now the learning curve begins. I hope Adobe hurries up with DNG Converter/Camera Raw and Lightroom.