additionally reduces the HDD vs SSD cost gap when the system as a whole is
considered. The initial cost of a fancy RAID HBA plus onboard cache plus
battery backup (BBU or supercapacitor) can easily exceed more than 1000 US
-dollars even after discounts - a sum that goes a log way toward SSD cost parity.
+dollars even after discounts - a sum that goes a long way toward SSD cost parity.
An HBA-free system may also cost hundreds of US dollars less every year if one
purchases an annual maintenance contract or extended warranty.