Someone that has that much money that they can spend "that much money" on a fish obviously has "that much money" LOL It isn't consequential to them. It's like the average person spending $5 on a damsel. Let them have their fun LOL
Your water evaporation rate is probably due to the humidity conditions within your home. In colder months when the air is drier tanks will naturally have a higher rate of evaporation. If you live in an older home, where the insulation is somewhat compromised, this will have a greater effect...
OK I did some research and these are also badged as Evolution LED and similarly being some by Cadlights and quite a few other aquarium supply places. The link below has some testing data. If it's agains the forum rules to link to another forum, please remove.
120w LED