Of course, I've got suckered back in to video generation due to the existence of Wan (and will have a new fantasy show out in due course)
By comparison with the latest Kling version (2.0), Wan is on a par in quality, but Wan being open source, finetunable, and (after a small learning bump) easy to use on a hired GPU.
One of these clips cost 100 credits on Kling, which costs something like $1.67 depending on how you buy your credits. The other took about 11.5 minutes on a rented H100 GPU at $2.99 an hour, so it cost me roughly 60 cents. Can you tell which one is which?