they worth anything? 4 letter .biz..? what about easy names like "lowpropertytax" or "loan.biz"? i doubt there anything like LLLL.com i no some go for more then others but the lowest usual valuation of a llll.com is $30... would a .biz be atleast $15?
I think that only the LLL.biz domains are worth something if they make some kind of word, or pronouncable group of letters. For example, xghw.biz probably wouldn't be worth very much.