The Latitude E6430 has a better storage medium than most notebook PCs of a similar spec and age to it. This notebook PC has an SSD storage medium, whereas most comparable spec notebook PCs that have been available for around the same time as it have an HDD storage medium. Solid State Drives (SSD) store data in semiconductors on a circuit board rather than using magnetic or optical media. Solid State Drives have no moving parts which makes them very fast and reliable.
An SSD storage medium is actually the best storage medium amongst all laptops of this spec and age.
An HDD storage medium is the worst storage medium across comparable types of portable PC.
It may also be worth also looking at one of the other notebook PCs that have an SSD storage media currently available including the Fujitsu LifeBook A544[plb_2809610_price] which is cheaper.
Notebook PCs with a better storage medium that might also be worth looking at include the ProBook 640 G1[pl_2059084_price] (SSD), or the ProBook 650 G1[pl_2059085_price] (SSD) both from HP or the Fujitsu Stylistic Q704[plb_2382889_price] (SSD).