I went pony shopping yesterday and bought a bunch...by doing so I have completed 3 sets!! I don't know why but completing sets just gives me so much satisfaction. I completed my U.S. Loving Family, BBE, and Party Gift Pack sets! Yay! And I got 3 more Big Brothers. Now my biggest problem is that my pony shelves are over capacity. Some are standing on top of eachother, which can't be very pleasant for them ;-)
Also, I hit the 400 mark! I now have 403 actual ponies, plus 70 something items, like playsets, puzzles, lunchboxes, etc. This also gave me great satisfaction. But of course it's never enough
Dangles