I have become quite enamored of the German States coinage of the 17th-19th C., there are some appealing designs and very low prices with the minors. This period was full of great men, famous battles, and just very interesting history.

As for costs, most of these are priced at $25-500 in the market, however some of them do not show up in the marketplace more than once or twice a year so you have to be ready to jump on them.