I would think beem.com would only be worth the registration fee. It must mean something to someone.
It looks like there are a few famous people named Beem and an Android project called BEEM.
Heh reg fee and $50. A pronounceable web 2.0 all premium char 4 letter domain is worth quite a bit more. I'd say 5k is a good price for that domain for a seller. But to the right buyer it can be worth a lot more.
Sedo does tend to get the best prices for domains. I'm impressed with some of the prices that people get for domains there.
maleenhancement.net 15,000 $US
webcube.com 15,000 $US
marathon.net 15,000 Euro
clothing.net 40,000 $US
proshop.de 19,250 Euro
cuisiner.com 13,000 Euro
Mobile Streams as a seller
I know the guy who brokered that deal. I have to say that I think ringtones.com is probably more valuable than ringtone.com (which sold for a lot more) since most people have more than one ringtone. At least I do.