I'm also a plant buff and would like to utilize the space above the pond/pool to grow some tropical plants ect... and hydroponics concepts to add filtration. Very much akin to what Energy has for his ray/gar ( you can find his 1800 iir set-up in the gar sub-forum and probably the diy) as they say "different strokes for different folks" My point being I think.. you are making a very serious commitment to a pet.
And yes... It is sooo worth it!
And yes... It is sooo worth it!

They are pets.. not paintings to go on my wall. Maybe YOU wouldn't find the same enjoyment I do from my set-ups.. but then that's why we keep different fish to begin with. Would a viewing window be nice? sure, but if my cats where bashing their faces into it like in a tank.. I'de remove it. Space/Husbandry will always beat out Aestetics for me. And I'm not about aesthetics in any fraction of my life.... Most the things that "look good" are garbage.. I want something built good, if it looks good it's a bonus.