It's brandable, but so are many other WORDblog .com's
I find that blog names are hard to sell because not everyone is looking to START their own blogging SERVICE, they just want to make their own blog. So, your end user might be named Junior (a popular nickname), which could bring you in mid $XX. Other than that, use 21publish.com like I did with BL-OG.com and make your own free blogging service. Get a ton of members (Like I haven't done...yet), and then sell the name. Would be worth hundreds then.