"Dude" wrote in message
...

"Matt Barrow" wrote in message
...
http://www.planedata.com/aircraft%20...%20methods.htm




It seems to me that in the end, they claim to have better data than the
other sources. I would be curious what makes their data more reliable
than
the "value guides" they mention.

They explain that in this and other linked articles.

I did like the example they give for an
appraisal document, but it seemed to me they did a lot of the same things
that thier "methods" page pours doubt upon.

They explain the caveats.

Where do they get this pristine data?

Best part to me was that if you go by published prices - you will be high.
So true.

OTOH, it doesn't matter what "average" is. That argument is fallacious.

And they explain what really is divergence from "average". Look at any
listing and see how many items for sales list their interiors/exteriors as
8/10 or 9/10.

Most guides are based on selling ad space to SELLERS, thus they have to let
them run pretty much whatever they want. Also, final selling prices are
never recorded so at lest they make an effort to explain ALL facets, rather
than just "asking price".

When I bought my current bird, I made first contact with the seller almost
seven months before we concluded the sale. During that time, the asking
price dropped nearly 40% whilst the seller was involved in a traumatic
divorce and business upheaval. I could have missed out on that particular
airplane, but it had what I wanted (just short of TBO, good avionics) but at
a price rather higher than I wanted to and was willing/able to pay. He, like
most others, rated the airplane as though it was sacred. I didn't (and still
don't) ever buy that.

I certainly don't think anyone could give a totally objective guide short of
knowing precisely what the final price was, but it does run over the very
common fallacies that the market spews (such as new avionics, new
upholstery...).


--
Matt
---------------------
Matthew W. Barrow
Site-Fill Homes, LLC.
Montrose, CO