I'm not sure of the end of your question because it was cut off, but if you need a large amount of storage inexpensively, a HDD is the only way to go at the moment. SSD is and continues to be fairly expensive for a large amount of storage. You do have a few options:
- Spend the money on the largest HDD Macbook model you can afford.
- Spend some of the money on a SSD Macbook model, and get a large desktop or portable HDD to accompany.
- Spend some of the money on a Macbook with any HDD, then purchase a replacement fusion drive for the laptop. A fusion drive allows you to put your files you use most in the SSD portion, and everything else in the HDD portion. (This option requires the most know-how, work, and time.)
I hope that answers your question!