As for expensive pets, people who collected Murky are fine with that. What we aren't fine with, is extra pets available to other regions, who then "compete" against those they have the advantage over. The Chinese region has a few extra over even the EU yes, but we don't see China mixed in with the rest on sites like this one (the biggest/best as far as I know) and all other pet fan sites.
I'd rather they give everyone access to all regions pets, but still keep them as exclusive as they are now. Serious pet collectors are ok with expensive, hard to get pets. It just does my head in to put 110% in, and still see the EU people here 2 pets ahead of me.