I like how everyone is recommending October sure that’s the nicest time weatherwise to go to the game. And it’s the beginning of the season so the camaraderie factor is high but if you want to talk about efficiency with money, the best time to go is the last couple games of the season it’s cold nobody wants to go it’s cheap lodging and stuff isn’t so bad because everyone was just gone (possibly still is) for the holidays… Depends on how good/bad the team is, where you stay. How far in advance or last minute you get a ticket there is a lot of factors. Just Pick a game and come on down.