If I thought my tanks could never look better, I'd lose interest in the hobby. As it stands, I shuffle things around, try new plants, trade stuff, etc. I'm not heavily into aquascaping but I guess in the back of my mind I always want it to look better. Not just that, but I want to understand the reasons why things work the way they do.

I play the guitar. Classical guitar. Have been for twenty years. If I could look at any music and just play it without effort, I wouldn't bother. It wouldn't hold my interest and I'd just move onto something else. A pretty lame analogy but it's the best I can come up with.

Thankfully there will always be new plants to try and new discoveries for us folks. So there's enough to keep my mind occupied for a few centuries