SSD's are getting way more cheaper this days than ever before. You can even find now something like NVMe hard drives as well. If you have some money and good chipset on motherboard which will allow to play it on full potential go for that small drives. They are fast as hell.
if you buy HDD today, few years later will be punoh-ranoh jahanam habis,,,but if you buy SSD, maybe it will still can be used until you have grandchildrens....and until your grandchildrens marry.