i agree as well. however, i would be leery of 15k drives, i have heard of some reliability issues with them. 10k are much more reliable to my understanding. that would be one to definitely research abit more. with the features being introduced like CacheCade for LSI that is what i would recommend for a cutting edge system with outstanding IOPS, and the speed of ssd, yet the safety and security of a conventional HDD array. i would definitely look into that much further.