Why would you bother with the inconveniently located escalators when climbing the stairs takes a quarter of the time?

Why would you bother with the inconveniently located escalators when climbing the stairs takes a quarter of the time?
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Taken with a Canon EOS 7D
Date: October 02, 2013 15:14 PM
Exposure Time: 1/200 sec
Aperture Value: f/10
Focal Length: 24 mm