I found this but I can't seem to get a price anywhere. http://www.amatech.com/computing/product/aragon/aragon.htm
Where as a hard drive is a mechanic device that needs to spin at speeds of 5400RPM,7200RPM, 10000RPM, a SSD is electronic memory that can send your data at speeds close to the speed of light, limited only by the number of channels that send data to the motherboard.
You mean at speeds close to the speed of electricity 😀