You guys are a lot sharper than I. I had to keep going back and forth between the two pictures. I can barley see the cowl of the motor let alone the HP or size. The only difference I can see are the stripes. I wonder if the pictures are the same boat but different times, one when he had the stripe and one when the stripe was removed. 
One looks like he is at the water and one looks like he is outside his house? Maybe? Up here in my neck of the woods the trailer would be worth the $1500, but I know boats are way cheaper in the States. 
 
Interesting thread, on a different boating form there is a tread for funny boat ads. People asking to much for yard art, LOL..