Some facts:
Ski Dubai has 5 runs that vary in difficulty, height and gradient, the longest run being 400 meters with a fall of over 60 meters. The inside temperature ranges from -1 to -2 degrees Celsius while the temperature outside ranges from 24 to 50 degrees Celsius annually. It costs approximately $75 for the whole day, or if you are just feeling tired of shopping, you can ski on an hourly rate of $25. There are many restaurants surrounding the slopes like from where this picture was taken.
But this is nothing compared to the Ski Dome. The word on the street is that it will be finished sometime towards the end of this year. Here is the quote from their website.
"A Unique Experience: The project consists of a dome - a steel structure - that will include a huge revolving ski slope, going through and around an artificial mountain range - created to emphasize the "Arctic Experience" effect. Two huge real-ice columns will mark the entrance to the dome. Within the dome, there will be all kind of Arctic experiences, ranging from Penguinarium, winter aquaria, snow castle, ice-rink, Arctic animals statues, 4-season aquaria, snowfall, sound and light effects, cold and warm bath spa and other facilities, an ice-bridge, a cable-lift, snow maze, ice-slide, polar bears, are some of the features that will be integrated into the development and attractions. It will also have a deluxe hotel, a shopping mall, restaurants, coffee shops and other retail outlets."

Friggin' crazy.