My question is for humanities researchers who make frequent use of a hard-copy bibliography. (I am asking in general terms - I do not wish to discuss a particular publication.)
If you have been using a volume which exists both as a print copy and in online pdf format, but a second volume now needs to be published, would you expect another volume in dual format as before, or would you want the new second volume to be published solely online with better search capabilities than a pdf can offer?