The enterprise level ssd's are manufactured and configured for heavy duty professional use while consumer level ssd's are manufactured and configured for typical everyday use at home. The controllers, firmware, and memory are different. The consumer level ssd's use less expensive components to help keep prices down. That does not mean consumer level ssd's are inferior. They are simply designed and intended for use in a different environment.
For typical everyday home use or gaming an enterprise level ssd is not necessary and not worth it. A consumer would have to be doing some very demanding work to justify the cost of an enterprise level ssd.
BTW - The OCZ Octane you mentioned is no longer in production. OCZ had to reduce their offerings quite a bit due to financial problems. There are only 6 OCZ consumer oriented ssd's remaining in the ssd database I maintain:
http://www.johnnylucky.org/data-storage/ssd-database.html