Cost for me. I wanted a Gigabyte I-ram but it was too expensive when I only had one 512MB DDR stick after upgrading to 4GB of DDR2. I bought a 60GB Sandforce SS

Cost for me. I wanted a Gigabyte I-ram but it was too expensive when I only had one 512MB DDR stick after upgrading to 4GB of DDR2. I bought a 60GB Sandforce SSD that fulfilled that speed gap.