If you play supcom, you need more than 2GB of RAM if you dont want slow down after there are 2000+ units on the field. I would have 4 GB, but some companies (Nvidia:dry:) cut some corners making their latest motherboards, so my computer is unstable with 4GB in....
I turn down all the settings to minimum and i see little difference bettween minimum and maximum on supcom so it must be the RAM... and anyway, there were issues with that game and its RAM management...
But with these USB drives, it makes a decent compromise. Not every old PC has enough RAM, or support for 2GB, but most PCs have USB drives. So it makes sense. Memory for the masses, but there are some drawbacks...