I am not 100% sold on the book shop synergies, but the massage spa could be great - go in post ride, get a massage for broken bodies and replace parts on a broken bike.i'd love to see more concept stores like this: GreenGrocer Cycling Shop tho if i had my 'druthers i'd have a secondhand book shop and massage spa as part of the mix. and yes, i'm serious.
Or, massage for a distraction for a non-bike riding partner!