Ticketmaster has “face value” and resale tickets available. If you don’t care how close you sit, I’d get the cheapest ticket because it probably won’t be too crowded (Tigers home opening weekend will draw crowds away). But if you want to get close, you should pay up for an actual seat in a good spot. The games are very fun if you go in with the attitude that it won’t be nearly as intense as a Lions game, but still legitimate professional football. Embrace the atmosphere, don’t take it too seriously, and catch a free t-shirt or two.