Cat costa miniaturizarea?

Hard-disk intern de 500 GB, viteza 7200, SATA3 = 244.99 ron azi
Hard-disk de laptop de 500 GB, viteza 7200, SATA2 = 282.99 ron azi
Hard-disk extern de 500 GB, viteza 5400, USB3 = 219.99 ron azi
USB stick 512 GB, USB3 = 3599.99 ron azi