I see your dilemma. I went to the feedback page for iastro888:

http://myworld.ebay.com/iastro888/?_trksid=p4340.l2559

As you can see, his overall feedback is good. However, if you click on the number next to the overall feedback score you are able to take a look at a more granular look of the feedback.

http://feedback.ebay.com/ws/eBayISAP...c&myworld=true

You can see that the vast majority of feedback is positive. There is a small amount of neutral feedback (since most people are either happy or upset), and a relatively small amount of negative feedback. Taking a look at the negative feedback, you will see that some people say they have received used phones instead of the expected new phone.

http://feedback.ebay.com/ws/eBayISAP...ve&interval=30

So, there is a chance of that happening to you. However, what I like about this seller is that it seems to always deliver. Meaning you are at least going to get something. More likely than not, you will get a good item, but there is a chance that you will not get what you were expecting.

The price seems fair. I wouldn't sell either of my N900s for less than $600. And probably most of us that have one, and are somewhat regular in this forum, feel the same way. Hope you are happy with whatever you decide.