im torn. as someone with a massive personal library, bluray was a non-starter. they never fleshed it out to the storage densities i would have required for my library. solid state storage has come so far now, it just makes sense.
someday i'll just be able to hand a single drive with my 100tb of content to my kids. if youre concerned about 'owning' shit. start powning it.
There's currently little reason to choose SSDs over HDDs when you're talking about bulk storage for media. HDDs have plenty of R/W speed for this purpose and are a fraction of the price. New, you can buy 8TB drives for around $100 or used/refurbished (from somewhere like serverpartdeals.com) you can buy 14TB for $150 or even 20TB+ for $250.