At exlibris, the Wimmelbuch Zürich costs 20.- in promotion, 25.- without discount. Why the big price difference to Galaxus? https://www.exlibris.ch/de/buecher-buch/deutschsprachige-buecher/beatrice-kaufmann/das-zuerich-wimmelbuch/id/9783952440827?gclid=EAIaIQobChMI6KW4kNnt6AIVCbrtCh0MLQv-EAQYAyABEgL8DfD_BwE&gclsrc=aw.ds