I recently went from one board to 5 in what has to be record time. I've been paddling a Starboard 12-6 for a bit over a year and love the board (a very special gift from my brother). I'm a big guy with balance problems so I needed all of it to start with. I think its one of the best big boards out there...very fast, great glide and actually still surfs surprisingly well..especially at my size.
Then i bought my wife the Oxbow 11-0 in May. It's a great board for her to cruise on but I always thought it was a bit big for her in the surf (she's pretty small). The board handles her instead of the other way around. I've had some fun on it in the waves though. We're going to give that board to my oldest daughter who has been bitten by the bug.
A couple of months ago the folks at Starboard asked me if I would consider doing demos for them here in Massachusetts in return for a steep discount on boards. Since I was already saving to buy an 11-2 I jumped on the offer and also ordered a 9-8 for my wife. Just got the boards last week so I've only taken the 11-2 out a few times and the 9-8 for just a total of 4 waves....4 great waves...

Almost at the same time a very good friend gave me a brand spanking new C4 10-6 (I know, I know...one hell of a friend) A great board...stable, fun to ride, such a change when I dropped down.
It's a great feeling to finally have a quiver. The 12-6 is in the process of being completely restored. She's one of the original all wood veneer sportech's. I'm fixing any dings, repainting, new clear coat, and a new pad. She'll be my distance/crusing/downwind board and be babied from this point on. The 9-8 will be the go-to board when its big and clean. The 11-2 and 10-6 will alternate depending on the mood...the 11-2 is fun to walk on, the 10-6 turns so easily, both will get lots of hours on them.
Please note...take my comments on the abilities of a given board with a grain of salt...I'm a newb of the 1st order. These are just how they feel to me.
The only addition that i can see that I'd like is a true downwind racing board.