content: SSD vs ddr4 ram, whyy gthe difference in cost per byte?? Dumb question... A friend and I were at the Micro Center store in Houston last Saturday doing up a sort of a price list for a do-it-yourself gaming computer. Total cost came in around $750, which is all but giving hardware away compared to the situation you had 30 years ago or even 20 years ago, but I noticed that RAM memory was still relatively expensive, that is, about $110 for 16 GB on to 8 GB cards. A 500 GB SSD main drive, on the other hand, was about $150. Why the difference in cost? Or, actually, the question which suggests itself is, has it occurred to anybody to try to set up a computer without RAM memory and simply wall off a 50 GB section of an SSD drive for the purpose of RAM memory? What would happen? Would these SATA interface make the memory on an SSD too slow to use as main memory?