Mark Johnson over at the Game Journal recommends a Game of the Month experiment: It's been said that the favorite boardgame for most hobbyists is whatever is new. Although there are established favorites such as Acquire, Settlers of Catan or El Grande, a look at session reports shared on websites and online discussion groups shows that many of us enjoy playing the latest new games. This steady influx of new titles means you can find yourself playing and buying new games all the time. What's wrong with that? Nothing, of course, but there's also something to be said for slowing the pace down, spending a little more 'quality time' with fewer games.
Simon and Dave and I have been trying something similar with Euphrat & Tigris although in our case it has been more like Game of the Quarter.