We are seeing how solid-state drives are being used more and more in laptops and desktops. However, the high price for higher storage SSDs is making them not so viable. Most computers which have a high capacity have the traditional HDDs for storing most your media files and documents.
SSDs are useful where you require high speeds, like in gaming. They are also useful for storing the operating system, which will result in the faster performance of the computer. For all other purposes, a HDD is more suitable. An SSD of high storage is prohibitively high-priced.