Geez, this thread had been buried a long time! The last time I replied to it was in 2014 so I guess I'll list my current collecting goals since a lot has changed in that 4-years. These are my current collecting goals in order of their priority and importance to me right now.
1. Rebuild my retro game collection: primarily I want to build up my NES, SNES, Genesis, and Gamecube collections since those all took the biggest hit during last year's infamous selloff. I don't plan on rebuying everything I once had, but I'd like roughly about half of it back. There are also a few titles that I didn't have on those platforms that I'd like to have. Also, there are a few titles for other retro platforms that I've like to obtain again as well.
2. Work on completing my other collections: There are many consoles I'm still actively collecting for, some I only have a handful of games left that I want on them, some there are many I'd still like to own, but I will continue to look for the games I'm after. Depending on how bad I want specific titles I may result to ebay or paying similar prices at game stores, but for the most part most of the titles I'm after I'll be patient about and pick them up when I come across them for a good enough price.
3. Obtain boxes and manuals for my loose cartridge games: This is something that will mostly be a passive goal, for now, but I am actively trying to complete the loose cartridge games I have, eventually hoping to get boxes and hopefully manuals for all of them. Definitely the N64 is the system I would prioritize the most for this, but also Genesis and SNES; regarding NES I'm still on the fence as to whether I want to go through the trouble of completing them, but we'll see. This goal might go up the list in the near future, but for now it's a relatively passive goal.
4. Build my import collection: Luckily I have many of the import games I really want, but there are still a decent amount I'm after. I've stuck to getting imports mostly as gifts or on the super rare occasions I run into them in the wild, but I imagine I'll still use these methods for obtaining them for the foreseeable future. There are some pretty high dollar imports I'm after, but these will likely be the last imports I obtain; I wouldn't be be surprised if it takes me a decade or longer to bite the bullet on a few that go for over a hundred bucks.
5. Get back into NTSC-US Saturn collecting: This has been something I've entertained for a very long time after deciding years ago to only collect import Saturn games given how much cheaper they are and also how many more titles there are for the Japanese Saturn. However, this doesn't help me with the JRPGs and various other titles that are incredibly hard to play if you aren't fairly good at Japanese. The reason this goal is at the very bottom is that I have no intention of starting my US Saturn collection up anytime soon, and unless I come across a bunch of choice Saturn games for a killer price this goal will likely remain on the backburner at least for several years.