Don't know. The .org thing is generally not as popular as .com's. Has it been used for anything, does it have any backlinks, etc. It is a short an easy to remember name though. I actually like the name. You could probably pick it up fairly cheap.
very funny beer.com 2004 = 7.500.000 USD http://www .google. com.tr/search?hl=tr&q=%22www. mybeer. org%22
I think a proper development could bring some value to this name. Otherwise - mid to high $xx, or maybe low $xxx if you're lucky