I'm not exactly sure how the scam works but here are a few facts. $45000 boats don't sell online for $12000.
The phone number goes to a searay dealer that owns the boat. This guy doesn't own the boat.
(I checked and alerted them that thier inventory is being used for a scam)
It would seem on it's face that the guy is using escrow.com so it will be safe but the scam has to be that you let too much time elapse and the escrow company gives him the funds before you notice they are gone. there would probably be somekind of confidence scam right before that date asking for a little more time.
Or when you never recieve the boat, he swears it was shipped and your case goes toward arbitrattion and you will settle by giving up about $3k so as not to have to deal with the arbitration process or give up half to get back the other half... something like that.
I saw something not quite as slick w an HTM 24 that was on Craigs for an impossibly low sum and the email back said the boat was in Indonesia and blah blah blah.... because people ship thier HTMs to Indo all the time.
I don't think I have it all figured out, but I'm sure this is about the jist of it.