Or simply cautious as the old adage always seems to prove true with prices and situations like the one above "If it seems too good to be true, it probably is." Pessimistic? Perhaps. But in this day and age, it does not hurt to be a bit cautious side when dealing with expensive things like a bicycle. This story seems to repeat itself multiple times on the online ads and rarely is even scrutinized beyond taking the time to write out a check (and losing the bike in the end as it was "hot":

"............After months of searching, detectives found the bicycle advertised on Craigslist and began searching for it. The advertisement, posted with a picture of the bike, convinced detectives that the customized bike was Nicodemus...........Detectives traced the thief's IP address to Antelope Valley, where the ad was originally posted............Although the thief has yet to be apprehended, detectives found the bike more than 500 miles away. The Craigslister had sold the bicycle for $800 to a man in Oregon.“He thought it was a really good deal,” Herman said. The man voluntarily handed over the bicycle to the Crescenta Valley detectives after they told him about the alleged theft........."-http://www.nbclosangeles.com/news/lo...167255425.html