Yes all things considered the EML XLS 300b has the best combination of sound quality and great durability and reliability. A true workhorse tube.
As someone who is casually looking for a Bakoon 13r - the resale market is no way a 50% drop. I've seen on average about 1k off from 6k MSRP which is a pretty standard discount in terms of a listing price.
In terms of dealers can't speak to that.
If I purchase a unit new it will likely be through Bakoon themselves.