LLLL.COM not premium and not exact acronyms have an active reseller market within low-mid $xx range.
Generically you can manage them in two ways: long term investment, keep it for years hoping the market will raise up to gold times (2006-2008), OR quick flips with small profits.
The second solution is more common for non-premium LLLL.coms.
You can acquire hundreds of them at $15 / $20 each one, and then sell them at $25-$30 quite easily, with a little patience and good marketing skills. If you consider an average $7 net profit for each one, make your homework and figure out how much you can earn.
But it requires a lot of time, and i'm not sure it worths the efforts.