Many technologies have this type of price tiering -- high end costs a fortune and exists for super-niche customers and to build out the manufacturing process. (Recall $25,000 plasma TVs 15 years ago).<p>If you&#x27;re making large purchases right now, 3+TB SSDs are pricing out fast spinning disk tiers. You probably will see no 10k&#x2F;15k drives in 2-3 years.