Why do Finance Companies Hate Sailplanes?

Anyone know why US Banks & Aircraft Finance companies are so averse to
glider loans? I can get my Sonex aircraft _KIT_ (as a pile of parts on
the floor of my garage) financed through NAFCO or others... But when
researching loans for my next sailplane they all say "sorry, no can
do" as soon as they find out the aircraft doesn't have an engine!

Anyone have thoughts, or finance companies they'd recommend?

NOTE: I've contacted Lea County State Bank twice. Both times the "SSA-
glider-loan-guy" has been out of the office, and the terms their other
staff have quoted me haven't been all that impressive... 6% - 10% for
5-7 years is not much better than what I can do with a Personal
Unsecured Loan at any reasonable bank. Most collateralized aircraft
loans (even for small experimental kits) are on 7 - 15 year terms and
4% - 9%!

*sigh*

--Noel