So I finally got as far as checking the Halloween vendor (and maybe at some point tonight I'll actually play) and discovered this year's crazy-expensive mini pet "only" costs 40 candy corn cobs, or about 190g at current prices and I'm sure that will go down.
It's not cheap but it's less than 1/2 the price of previous years minis, which is a really nice change - it means I can focus on enjoying the festival instead of grinding candy corn, and I'm sure other people who I know are still catching up on previous years minis will appreciate it too.
(Although I assume we'll need about 30 Mini Pumpkin Jacks to get the Mini Jack O' and Mini Jack O' Lantern, if it follows the same pattern as the Wintersday minis, but I even adding that to the Raven I doubt it will cost as much as previous halloweens.)
"You can run like a river, Till you end up in the sea,
And you run till night is black, And keep on going in your dreams,
And you know all the long while, It's the journey that you seek,
It's the miles of moving forward, With the wind beneath your wings."