The consensus lines right up with my thoughts - mid-high $x,xxx is my appraisal.
However, don't underestimate this name's potential. Everybody who read this thread had a certain something come to mind at first. Don't deny it. I won't doubt it. What else is length immediately related to? Don't even try to tell me clothes. No tailor would buy this name.
To keep everything PG here, the highest and best use is obvious. Spammers like Jeremy Jaynes and Bill Waggoner made millions of dollars pushing the products which allow for a desirable "length" to be attained by way of unsolicited email advertisements.
The name is one thing, but getting heads through the door is a whole other ballgame. This would have to be one of the most competitive niches in the search engines. Getting organic traffic will be very difficult to do. However, properly optimized, this could be a money machine.