For me, it all depends on what I am looking for.
It all started with the Imperial Shuttle. First I got the Shuttle loose & complete. Then the Instrustions. Last, the box.
For figures, I got the hard ones out of the way first, then I moved on to the simple ones.
Now I have been getting the POTF coins one by one. Just got me the Anakin coin. Before that Yak Face from Tom Derby.
Right now I have been trying to get Proofs. I have a Proof Card of FX-7 ESB. I would like to get that Tatooine Skiff flat box that Gus has but I was out bid & will have to wait till close to the end of the auction. Fingers crossed.
Basically I just bounce around looking for what ever comes to mind. But when I do get onto something I want or need, I pursue it for awhile till I get it.
Of course I always look for the deal.