A few questions.

1/ What is the best way to go about obtaining one?

2/ How much is reasonable? I've heard as low as $50 (from Kyuusaku... where is he these days btw?) up to some crazy prices.

3/ The controller connector is the same as Megadrive, apparently. Compatible? Unlikely, but might be worth asking since there are supposedly quite a few base-unit-only A'can's around.