HathiTrust.org, 13-14 million volumes has less than 20 FTEs and the vast majority of them are on new development projects. Put into maintenance it might take 2 FT sysadmins to keep going. Maybe double the cost for operations. Preservation and digital distribution is really really cheap. SoundCloud isn't losing $44 million on sysadmins, servers and network. It's all the other startup crap, sales, bizdev, legal that is doing them in.