So we know that the new Mac Pro will probably have up to 1TB of storage internally and it'll be up to us to buy an external storage enclosure. I've never owned an SSD, but I know they're much more expensive when you get up into the Terabyte-sized SSD's. I have around 4 TB's of data I'd need to store (including headroom for more). My question is....why does nobody talk about HDD anymore as if it doesn't exist or it's being phased out? Maybe it's just me, but I can't afford 5 1TB SSD's @ (I'm guessing ~$600 a pop), especially considering you can buy 2-3TB HDD's for ~$150. Aside from the bootup drive (which the Mac Pro will cover internally), is there really a need to load up on SSD's? Or will most people be purchasing enclosures designed for 3.5" drives? I guess my question is -- what's the future of storage? HDD or SSD? Edit: I'm also curious about SSD longevity. I seem to be able to get several years per HDD and they're quite cheap to replace. Do the benefits of SSD outweigh the cost of having to replace them when they fail?