I was only able to find a couple of references which don't shed much light on the issue. One article states that the ice is usually only removed during hockey season when events that require a bare floor such as monster trucks come to town. It can't be cheap to set up the ice so I imagine they remove it only if absolutely necessary.
http://www.bizjournals.com/wichita/news/2017/01/13/weather-multiple-events-create-logistical.html
http://www.bizjournals.com/wichita/news/2017/01/13/weather-multiple-events-create-logistical.html
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