I currently have 3 media players and 14 TB of networked video storage -- yet I do not agree with you that HDD's would be appropriate for these guys. You can only store 200 DVD-R images per 1 TB of HDD. The contents of DigaDo's 13,000 disks would require a 65 TB storage array -- just to accommodate what he has now. At the rate he burns he would probably have to add another 6-8 TB per year.
Well, he could leave his existing collection and use HDDs for future burns. Yes, 6-8 TB per years sounds like a lot, but 1500 or so new disks per year sounds like a lot too. But for someone like me with a more modest existing collection and not a lot of future needs, the HDD is the way to go, imo.