If I do it again I think I am going to distribute the job across many more servers in my data center to increase my luck and perhaps do it faster next time.
Do you have a decent graphics card? If so, did you use the version of vanitygen that exploits it? Doing so can make a big difference. On my machine, generating 1Brangdon gets to 50% after 511 days with vanitygen, 310 days with vanitygen64, and 15 days with oclvanitygen. So 20 times faster with the graphics card.