I was thinking the other day about my gaming purchases - I'm pretty good for trying out new games and IPs whenever I can, I think there's nothing better than a brand new game that you're unfamiliar with, but end up being so drawn into it you cant stop.
That said, I noticed that sometimes, these series I haven't tried and new IPs get ignored by me because I can only afford one game - and there's a big name title coming out refuse to wait for.
For example, I bought Pokemon Red, Gold, Sapphire, LeafGreen, Diamond and Heartgold on launch day. I also have a preorder down on Pokemon White

. Another example- Zelda. If the choice came down to a new IP I was really really excited by, or another zelda game....I think I'd buy the Zelda game. Golden Sun too - I put off a lot of games I really wanted over Christmas,and could've gotten for pretty cheap, because I had to have Dark Dawn at launch.
Are there any series you guys just have to have on launch day, potentially at the expense of other stuff you really liked the look of too?