It just means RAMs aren't sold in volume in your area, if you're not feeling it...
[1]: https://kakaku.com/item/K0001448114/pricehistory/ (archive: https://archive.is/CHLs2)
[1]: https://kakaku.com/item/K0001448114/pricehistory/ (archive: https://archive.is/CHLs2)
So I don't know the right approach here, I can see value for both price trends for multiple reasons, unfortunately :) Wish I could give a simpler answer!