If you buy a Mercedes you don't expect it to haul a refrigerator, you buy a truck. If you buy a truck you don't expect it to cruise the fast lane on the Autobahn like a Mercedes. You don't expect one vehicle to do every transportation job equally well.

No, when you buy a vehicle you do your research and buy the right one for your purpose. Any significant purchase should be treated the same way.

I'm realistic. I had a pretty good idea what to expect from an N900 before I ordered one, even though it wasn't available for a hands-on try. So I'm quite happy with it, not disappointed at all. If I had been disappointed I'd be mad at myself, not whining to others about my mistake.