My reasons for joining are....
Easy to Type, Easy to Remember, Ideal 4 Cell Phone Users, Short, Brandable, Marketable, Rare, Redirect to Websites w/ Long URLS, Limited Quantities / Competition, Small Enough 4 License Plates, Increase in Value Quickly, Cheaper to Advertise and especially the fact that a L-L.com domain sells for $2,200 or more.