For me, on eBay, Sedo and Namepros, I have a much easier time selling LLLL.coms because I sell mainly to other collectors. With 11,881,000 LLLLL.coms, and years before they are all registered, they are not yet rare. If I had two similar names to choose from at the same price but 1 had an extra letter, I'd choose the smaller domain due to the rarity factor. Thus, I'd choose Uhj.com over Uhjo.com regardless if the o could stand for online or organization or even makes the domain more pronounceable. If I had to choose between a non pronounceable LLLL.com and pronounceable LLLLL.com at the same price like ZLDM.com and ZILDI.com, I'd choose the LLLL.com.