Unfortunately, the banks use it as a depreciation guide
when doing loans.
As for the current market value of a 2003 Magic deck with
normal wear and tear and 496HO. It's worth whatever
someone will pay for it! My guess is around $70,000 to
$75,000. I currently know of 2 for sale, a 2005 for $85,000
and a 2006 for $90,000.
That is exactly what we found when shopping. The problem with the asking prices of those almost new boats is the delta is what i would have to come up with for a down payment. We looked at a gorgeous '06 asking 114, and another asking 109, but the NADA on both was 81. The delta of 33 grand was about 30%, more than I wanted to pay as a down.
We also found that NADA didn't take into account nice upgrades, like stereo - the choice is CD, 2 speakers, or 4 speakers. Even cheap car stereo systems don't have only 4 speakers any more. Polished, powdercoated, or anodized hardware - not even listed as a possibility.
Those kinds of issues make the used market soft, IMHO, especially when combined with today's real estate market.