Widmore is a highly driven type AAA personality and would probably go to great extremes to achieve his goals. But as with Ben we don't really know what Widmore wants with the island. Assuming that Widmore wants access to the island why would he have a need to plant a crash? My guess is that the primary reason was to terminate all searches for the crashed plane. With enough planes and boats looking for the crash, combined with modern technology, it is possible that the likelihood of someone stumbling upon the island would be greater than in the past? We had a hint of Amelia Earhart being somehow linked to the island through the use of Herarat Aviation. Is it possible that during that search someone accidentally found the island and revealed some of it's mysterys to secret powerful organizations or high powered secretive corporations? (Yeah, I wouldn't be surprised if someone who appeared to be young and unaging ended up being Amelia Earhart's co-pilot...) The issue of the Black Rock log is probably very critical to this entire issue, seeing as Widmore bought it at auction. It may have left the island with a few survivors from the Black Rock in a lifeboat. Any secrets in the log could be related to strange happenings on the island or how to get to it or leave it. Sure, the log entries might have seemed crazy and chalked up to sailors that had gone nutty while being stranded on the island when in fact they went nutty because they didn't know how to leave the island properly at the time. So anyone reading the journal might have thought log entries in there were just the ravings of a lunatic(s). Alternately the journal might have been brought back to the real world by someone who later got stranded on the island because of the Amelia Earhart search.
Regardless the giant question is what's so important about the island and what might be the big draw for someone like Widmore? My guess is something like the age old stories of a fountain of youth. True or not, Widmore might think that getting to the island or learning its secrets could give him eternal life. Someone with that much power and wealth might feel entitled to it and spend anything to find it. The search for a fountain of youth is an age old story among explorers throughout history so I wouldn't put it past the writers to use such a story element. Is there a geographic relationship between the island and the healing places in the real world? Maybe!














