No, totally this is the look:
Sleek, modern, minimal.
I have Kubuntu installed on one laptop and Ubuntu installed on the other laptop. I tend to prefer dark themes. For me, they are easier on the eyes, look cooler and I think they consume less energy.
Kubuntu with KDE 4.1.2 is definitely the most aesthetically pleasing distro I have used. The default themes, eye candy and color options are excellent. I can turn on Obsidian coast and have a very functional dark theme without needing to do much tweaking. Then, I can adjust a few options and all of the other applications like Firefox, OOo etc work well with the dark theme.
On Ubuntu with Gnome, I have tried every tweak out there and I just can't get everything working properly with a truly dark theme. OOo has problems, Firefox has problems, Thunderbird has problems, Filezilla is better than it was in Hardy but still needs some adjustment. Even if I create a launcher to use another theme, there are still problems when using the Open dialog etc. Hopefully, these issues are fixed at some point. I'm guessing it is up to the application developers to improve gnome support and test with dark themes.
When it comes to functionality, I prefer Ubuntu. Much more intuitive for keyboard shortcuts, interface etc... more stable, better support for hardware, better functionality (extract archives from right-click) etc. The Kubuntu team did a great job of integrating the KDE desktop with Ubuntu, but it is still a bit buggy and seems to be lacking some basic functionality. For my primary machine, Ubuntu is the way to go.