yes, along with replacing lighting and mechanical filtration pads/whatever, water conditioners/chemicals, and... do you realize how much it would cost to feed the number of fish/inverts/corals you can put in 5,000 gallons of water? Especially b/c different things will need different foods etc...
I'd snatch that thing up in a heartbeat if I had people I could count on to help move it. It would look good in my storage shed next to all the other tanks that are too big for my house.
i wonder whos gonna end up with it.....probably some rich guy that just wants it to look cool , instead of someone who will truley appreciate the value of the lives it will house.