I think this would work for many of the 3e products, since PDFs are likely printer-ready and have high-quality files available.
However, the real legacy products, such as works from 1e/2e are probably not very suitable, because of the quality of the scans, which in a lot of cases were primitive. You're not going to get a good copy of the "White Box", the Basic Sets, the AD&D hardcovers, or older modules. I doubt they'd work well in POD. In that case, I just wish they'd keep selling PDFs of the really ancient stuff.
However, the real legacy products, such as works from 1e/2e are probably not very suitable, because of the quality of the scans, which in a lot of cases were primitive. You're not going to get a good copy of the "White Box", the Basic Sets, the AD&D hardcovers, or older modules. I doubt they'd work well in POD. In that case, I just wish they'd keep selling PDFs of the really ancient stuff.