I have not read every single post in this thread,but I wanted to give my 2 cents.
I have 8 tanks running right now from 10 gallons up to 180 gallons. I have 490 gallons total. No 2 tanks look a like. Some have a more natural river look with fake plants,due to the fish. I do not want to spend money on live plants I know will get ripped to shreds.But I do not like a plantless tank either.The plants I have in these tanks,with the tank buster fish,look pretty realistic.But no plastic or silk can replace the real thing.
Others have real plants with black epoxy covered gravel. I like how the black gravel,with a black background,makes the green plants POP.
I also have a ADA rip off tank.Glosso,with micro swords,made to look like one of Amano's great master pieces.Not even close to the real thing,but it satisfies me.
My 10 year old daughter has a 30 gallon in her room,decorated by her. It has clown vomit gravel,florescent plants,and some plants that even glow in the dark. Although I would not decorate a tank like this anymore,some of the plants are from when I first set up a tank.
I look at the the hobby of fish keeping as a progression.It starts out for some as keeping a brightly colored tank that is a focal point in a home,to an obsession to get the best out of the tank,fish ,and live plants. Most people get drawn in by the colorful decorations,then get hooked by the beauty of a natural looking tank.
I'm to the point in the hobby of having,and likeing,both. I love to see how my 10 year old started just as I did. The brighter the better.Maybe some day she will want to re-do her tank with pea gravel,and live plants.
All my tanks have real drift wood. Except my daughters.Hers has a "water fall" That has a air stone under it for the "water"
Oh,and I also have the "show off tank" with the arowana

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So as many others have said,it is personal preference. My preference is a little bit of it all!