I don't know if it's worth the risk speculating on a camera like that. Historically I've noticed the best prices were before Boxing Week the last few years though B&H is certainly one to watch right now as they are dropping prices daily on a lot of cameras.
Case in point, the Nikon V1 with kit lens is now $299 and the Panasonic G3 with kit lens is also $299. Crazy good prices but worth taking the chance on eBay I don't think so....
If the LX7 came back at $299 on Boxing Week it would probably be worth it. The LX 5 is now $249 on B&H btw.
The FZ200 has gone back up in price with the best prices I've seen at around $549 vs the lowest we had in Canada which was $519. Could it drop again? Who knows.