I had nine or ten but I've been trading to try and get all the event pokemon I don't have, so all but one are gone and all but one of my shiny's. But on the plus side I do have all event pokemon (none of them hacked... as far as I (and GTS) can tell) and legendaries I didn't have (not including Entei, Suicune, Raikou, Ho-oh and Lugia but since I just got heart gold that should be resolved soon). Very worth it imo :) . Even though I don't battle with legendarys against real people, I love having them.