In my experience, the prices of PowerBooks in general tend to be higher in Europe than in the U.S.
Personally if I saw one for less than 50euros I would expect problems with the screen image, HD, optical drive or a combination of these faullts.
Just checked on PBook 12" currently available on the most popular French website. There were only 2 available, which surprised me, I expected to see many more:-
Apple powerbook G4 12". PPC 1 Ghz, RAM 1,25Go, HD 100GB. Wifi, bluetooth, OSX 10.5.8. New charger, battery no longer holds a charge. 100€ ($US117)
PowerBook G4 12". It appears to function but unable to boot to desktop, maybe requires attention. 100€ ($US117).
Let's be fair, in my experience a working charger here for a 12" PB would easily sell for 20euros. So anyone finding a PBook 12" for less than 50euros is getting a bargain.
And for anyone looking for a PBook, especially a 12" model I'd say that unless the fans have been completely cleaned and the cpu re-pasted one could expect overheating.
I've purchased three, and completely refurbished 2. The 3rd I've been putting off until I've found the courage to attack another 12". Imho they should come with a diy government health warning.....
I'd go as far as to say they are the most difficult laptop I've ever torn-down & completely refurbished, but what great satisfaction when one has suceeded! Just ask
@AphoticD who wrote up a great tear-down/refurb report
HERE.
I'll just add that once one has mastered an iBook 'Clamshell' refurb, you're about ready to attack a 12" PBook.