The DELL XPS 13 has a better storage medium than most medium processor core notebook PCs that were released more than two years ago. This portable PC has an SSD storage medium, whereas most notebook PCs of a similar spec and age to 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.
This portable PC's storage medium (SSD) is actually the best storage medium across all notebook PCs of a comparable age and spec to the XPS 13.
An HDD storage medium is the worst storage medium amongst similar types of portable PC.
Alternative notebook PCs that have an SSD storage media currently available that you might want to look at include cheaper laptops such as the Toshiba Tecra A50[plb_2363547_price].
Notebook PCs with a better storage medium that might be worth considering include the XPS 13[pl_1304263_price] (SSD), or the Latitude 12 E7250[pl_2367862_price] (SSD) both from DELL or the Lenovo ThinkPad X240[plb_2781600_price] (SSD).