We're glad to hear you like X-Plane 10's graphics. Some of the default aircraft that are included with your purchase of the sim are very old and may not have been updated or modernized in a while. We thought it was better to have a lot of aircraft options at that time.
We are collecting anonymous usage data now so that we can see what aircraft are most popular, so we know where to devote the time and development energy in the future. If you are not yet participating, I would recommend you opt in by going to Settings -> Operations & Warnings & checking the box for "send usage data to Laminar Research."