A more interesting question is how much longer WHSmith can survive in High Streets in general?
https://www.ft.com/content/27bd2196-1f60-11e7-b7d3-163f5a7f229c
With punters buying fewer newspapers/magazines over the counter, Amazon providing any book I want by tomorrow's post and Google providing all the calendars/diaries I might ever need why would I ever cross their threshold?
Airports/railway stations are a different matter all together. Half an hour to the plane/train and we all end up browsing there buying something to read and the overpriced bottle of water but the High Street?