I don't think they are exclusive. They are available online through Toot's Toys (but are currently sold out), Lloyd's Toys, Amazon and eBay.
How much is the retail price for Draculaura? The online prices seem to be twice to four times more expensive than general budget line dolls.
I found them at Asda so I thought they might be, I always dreaded they would be but since I found I guess it doesn't matter too much but for the people trying to find it might, they had 2 Clawds and 2 Skelita's and a few Draculauras, I was lucky to go in there at the right, this wasn't a huge store it was a little, they don't usually carry exclusives I'm glad I paid attention when seeing Draculaura at front because before the Freaky Field trip line was there and now it's in it's place so that's good, now they don't have Clawd though but bigger stores might, I dreaded because it was a pain to find save Frankie Jackson I couldn't find him at all and eventually I bit the bullet and ordered him online for twice as much, so if it's not exclusive then it will likely show up in other stores, I was actually Ghoul Fair would be in the same store but I guess not I haven't seen them in any other stores yet.
I've only seen the Scarnival at walmarts and the Ghoul Fair only at targets when they first came out but I'm now starting to see Ghoul Fair at walmarts too so Scarnival could still make to targets. Usually alot of these secondary budget lines don't even make it to regular stores I tend to see them at Alternative channel stores only or at least when they first come out. Coffin bean I only saw them at Big Lots.