Oh I completely understand why the price to fit/finish ratio is the way it is, and I wouldn't say they are overpriced by any means. In fact to have any amount of handwork for what they charge is pretty amazing. My experience has been with chisels in the $50 to $100 range, where in the best case they can do a good job on the forging and lamination, but have to rush a bit through the finishing. To some extent the roughness works with the overall aesthetic. My only real complaint is when the back of the tool is out of sorts- it is quite time consuming to correct this while maintaining a halfway decent ura. I have this in mind because I've spent the better part of this weekend flattening the backs of a set of 10 Kikuhiromaru oire-nomi in white steel #2. Each one with a significant concavity along the back, and a few with twist to boot. At least I can tell the steel is very hard, since my Shaptons seemed slower than usual
But in this price range you can get high-end manufactured Western chisels like lie-nielsen or veritas, where you can expect a negligible amount of work to get them in order. I don't think that makes them superior, since what I really want is a plain high-carbon steel run fairly hard. But for someone considering these tools it's something to consider. More is demanded of the user in setting up and maintaining the tool.
I would really like to get my hands on the higher end Japanese tools like those you mentioned. My plan is to slowly acquire some really ace white steel #1 paring chisels, finished with file and sen. These will accompany the more proletarian ws2 bench chisels.