If I were you I would dig out the old Paypal receipt and send a friendly email to the guy you sold your A4000 to.
I would casually ask him if you could buy it back!
Obviously if you buyer was a diehard addict like us then you probably wont be in luck.
However if it was an impulse buy for a nostalgic ex Amigan he may have taken it out of the box once or twice and may now be secretly wishing he hadn't won it.
Failing this;
Some brand new unopened A500s turned up in Australia recently and I saw an A2000 that had been stored at a dealer for 25 years - box opened but never taken out of its poly.
Needless to say they all went for sky high prices.
Good luck! :lol: