I believe I've seen similar ad before (was mentioned either on my local forum or on Fugly Horse). It appears from time to time, but in different states. And the pic is stolen from someone's website. Although it may be a different one. In any case it's too good to be true.
P.S. HOWEVER the person I know very well (meaning it's not a rip off) had a huge warmblood gelding (12 years old or so) for sale for (if I'm not mistaking) $2,500 or so even neg to the good home. The owner was selling him, because he was too slow at the jumping course. So it happens. But I'd be very VERY careful.