Yeah, it would add up fast if I bought all the sets that look good to me! I liked the Indiana Jones sets, but when they were in stores the girls had no idea who he was and didn't really care. Figures they'd get obsessed with him 4 years later. :) eBay isn't so bad if you don't mind used sets with a couple missing pieces--it's the mint-in-box sets that people ask the crazy prices for. We got into Harry Potter and I had pretty good luck scoring a couple big lots of HP sets for reasonable prices on eBay. Patience is the key. And last-minute auction sniping, of course. ;)