Libraries are exploring new models of collaboration between interlibrary loan, collection development, and acquisitions. This paper presents two models in which libraries set aside acquisitions or other funds to purchase books requested by patrons through interlibrary loan processes. Workflows, scope criteria, and departmental relationships are described. The article reports on several aspects of the effectiveness of these models, such as turnaround time (comparable to traditional ILL loans), average cost per book ($37.00), and patron satisfaction (very high). The authors also address the subsequent circulation of titles and report on the bibliographers’ analysis of the relevance of the titles to the collection of one of the libraries.