Pinkie Pie was one of the 2nd ponies I bought (the other one was Rainbow Dash) I wasn't really into collecting when I got them and I didn't realize how much pinkie pie you get with everything! but the pinkie pies and the other spare mane 6 ponies from sets go to become baits for custom projects (I lack a rehairing tool and hanks of hair, but the ponies are there for when I am ready to get started) I have:
1 Extra Rarity
1 Extra Pinkie Pie (it's the crystal pinkie pie, I don't want to bait it... but I don't want to have more than one pinkie pie on my shelf. That's Fluttershy's job)
1 Prepped Twilight Sparkle