Many commercially available inkjet papers are formulated with acidic paper bases. This situation runs contrary to the general recommendation for acid-free papers in the scrapbook industry. Anecdotal evidence suggests that the reason for the prevalence of acidic papers may be due to the imaging industry's reliance on light stability information when comparing various papers. We have compared the performance of the same microporous inkjet coating on acidic and acid-free paper base. We confirmed that the rate of paper yellowing in the dark is greater with acidic paper bases. We also found that inkjet prints did exhibit somewhat better light stability with acidic paper bases. Consequently, the most stable paper for inkjet prints will depend on the specific paper and the intended application.