Not really. BackBlaze's post is about how to get on-line storage up for the lowest cost per bit. They appear to have done a great job at quadrupling the density of standard 1U setups for a similar price.

Capricorn appears to be in the business of selling standard 4 drive per 1U setups and support. The fact you have to contact their sales department to even get close to a price seems to indicate they're not competing on price.