We make a product containing a 1TB 2.5" HDD.

Our cost price of a 1TB 2.5" HDDs have gone up over the last few years.

It is now significantly cheaper to buy a 1TB 2.5" SSD retail from Amazon than it is for us to by a 1TB 2.5" HDD wholesale.

However cheap 2.5" SSDs are often slower than 2.5" HDDs in some important use cases. A simple test of writing the entire SSD is often slower than writing the entire HDD (which is already not exactly fast when we are talking about 2.5" drives). More importantly cheap SSDs can randomly pause for a period of time... typically only a few seconds but sometimes more than 10 seconds while they do things.