Most likely the first thing I will buy is the coolest vehicle on the board I like the most. So until I find out what my favorite board is, I'm not going to buy anything... else, if I like the standard vehicle the most, or maybe if I just can't decide on a favorite board or vehicle, I'll go with DK's board instead.
That's how I'm gonna do it; Imo, I think it's best to get the most expensive thing and then the next most, it just makes it easier to get the next item.
I bought a new vehicle first. xD
The 'Big bob-omb bus'or something. looked very cool!
Now I'm going to wait till i've got 500 party points and buy Dk'ruins ;d