I'm in this camp as well. In the USA people are more willing to spend large money on a setup around fish, but not one around plants. When I say fish I'm referring to saltwater, where the fish are many times the focus of the tank and not the scape. Most saltwater setups also have UVs to protect their fish (investment) most freshwater aquarists do not use one especially for this purpose.There's also the general impression that staple freshwater fish are a diime a dozen. An individual who spends $40 or more on each saltwater fish or coral is willing to spend $1,000 or more on an appropriate setup. People are less reluctant to spend that amount to house some $3 freshwater fishes or plants.