[Cavey]

You don't want to buy them at WDW, as they are pricey. 10 a day sounds good. If you're just starting out I wouldn't get caught up in pin values, just trade for what you like.

I keep my pins displayed in frames in my home office. When I go to WDW, most of them come with me, where I trade them all away. The new pins become my souviniers until my next trip.