Solid state hdd are very good and speedy, they have their down sides too where as mechanical sata dose not etc. Satas last longer in long run, solid states burn out more quickly in long run. Solid state has small chips on the chip-set mother board, when they burn out, hard drive and data gradually goes with whole thing.
Yes! They are fancy, new, more top line, they have their down sides too of dying off much more quickly in long term results.