I like solid-state storage, but there’s a time when you want the storage capacity that only a hard drive can bring — at least until SSDs become much, much cheaper. Of course, SD cards are pretty cheap to buy and to support in hardware which is why the format was chosen for the Raspberry Pi in the first place. At high capacities, the price:gigabyte ratio isn’t as attractive as that of a hard drive, but you get a single point of access for all your computer storage just as you do with any modern laptop or desktop.