High profile books are given higher priority, but it doesn't take longer than a few months. Which sounds a lot worse when I say it out loud... A negative bit on trade waiting is that the industry pays less attention to those sales numbers, so it's harder to keep books alive.
This is why I trade-wait; it's cheapter, looks nicer (though the "spread-out singles" look does have appeal), and lasts longer. It's also really hard for me to get singles in the first place, so yeah.
I used it to get Dragon Age - Awakening, and Origins before it was Origin, and it did those things for me. If I have to keep it on to play, that would be annoying, especially considering the state of my internet connection.
I can't say anything about the quality of the game, but the anime is brilliant. It's just so perfectly paced (I'm including the meandering first episodes with that statement) and emotionally rewarding. If you haven't seen it, go! Watch it! Now!
"The only Wario game I ever played was awesome. I forget which one it was by name, but I know it involved a pyramid, goofy bosses, and was on the GBA." Yep, that's Warioland 4.