|Boney, Yield, Pop, Homemaker, and Chubbs|
Then, you decide not to do them. You imagine your state at the end of that year and say, "I don't want that," and then act differently. I'm oversimplifying this a lot, but I think you get the idea. You can see how this applies to your hobbies as well, especially if you have a long history of impulse buying like I do. Will I regret buying the latest edition of Warhammer Fantasy Battles? Probably not. Will I regret trying to build a new Vampire Counts army? Probably, because I've played VC before and while it might be a little different, it's still a pretty two-dimensional army without a lot of variation. So at the end of 2012 I have an army that I probably won't like that I spent of ton of money on and maybe even didn't use all that often.
Buying Infinty? I'll probably regret that.
Painting up all the Zombiesmith zombies? Nope.
Buying a copy of the latest Warmachine rulebook, despite the fact that I already own it (this happened in the midst of writing this post)? Absolutely.