if its just random letters then register price - there are still thousands still available - i used to have a lot sold them all, most expensive one was for $25 and thats only because it was developed with PR. LLL.com domains are worth more since there arent any left to register. but any domains developed the right way can be worth a lot.
If it is un-registered domain, you can reg it for less than $10 at famous registrars. If it is registered, the price will depend on the seller.
If the domain name you have stumbled upon is available to register then it will be reg fee But if it is owned by someone then it will depend on the seller what he wants for that domain name. Or in some cases is he even willing to sell it.
if that LLLL.com domain Name is Meaningless then Reg Few.. If it is Brandable then some $$ are possible to get
If you're trying to purchase one in the secondary market, anywhere from $xx~millions. You need to be a lot more specific.
odin93, i personally have 3 "LLLL.com" domains in my portfolio. "paiv.com", "tivs.com" & "vesm.com" I would consider those domains to be fairly high in value due to the fact that: #1) they can easily be used as acronyms #2) they are brand-able because they can actually be pronounced and are easy to remember. word of mouth/viral advertising is priceless! You may stumble upon a "LLLL.com" domain that has been dropped, but most of the time nowadays they consist of 4 letters such as "cxjq.com". Like ReadyToGo said, you need to be more specific with your question
IMO reg fee for now. But I am predicting that prices of LLLL.coms will rise pretty soon when they are all gone.