Adcom gfp 750....why so many for sale?

The Adcom 750 is a fine preamp. It's just a far cry from the best. Still, at it's cheap aftermark prices, I think it is a steal for midfiers with highender aspirations.

Not a curse at all. The Stereophile blessing moves a lot of product for the manufacturer. That product eventually gets old or out of fashion and ends up on the secondary market. Crack your paper dude, there are a lot more Ford Taurus' or Honda Accords for sale than Ferraris.

"...it is a steal for midfiers with highender aspirations."
Nice back-hand compliment.

They are made by Chinese Elves!
They have evil spirits lurking inside, with bad vibes constantly emanating from them.
They are constantly breaking down.
They make other audiophiles smurk when they see it in your system.
They sound like chopped horsemanure.
They smell.
They look stupid.
They never work properly.
They are made by Chinese Elves with bad breath and who are flatulent.
That is why I use one.