Oh no, it's nothing sinister re: the spare parts/multiple PSPs...I just like the challenge of taking broken/faulty/bricked ones and sorting them out. This usually results in a few spare parts from those that are sadly beyond repair.

As for the charger - no it's not a official Sony one but it's a Kodak one that has the same voltage/amps as the PSP and has happily charged many a PSP in the past. Guess this PSP is a little more delicate than others!