I have no way of knowing how much money this hotel spends on its arboretum, but I have a feeling it runs into the millions of dollars. If you do not do anything else in Las Vegas as far as sightseeing goes, you would be a fool to miss this. Have you seen it and do you want to leave a message for others? Do it here, we have plenty of space. http://www.bellagio.mgmresorts.com