They look very well built. Amazon is pretty much sold out. Good info about lee valley. I wonder if their generous return polucy is recoup ed in the price.
Economics 101 Tony, in order to make a profit the seller must include all costs of doing business in the price.
That being said I would think the return policy reflects the idea that they won't get many returns because they are selling a well made product. It is also possible that they have some arrangement with the manufacturer regarding returns.
I have a lot of Craftsman tools because if they ever brake you take them back and you get a replacement...no questions asked. This Lee Valley policy sounds like that. They are on my go to list for tools.
I say that as one who has an unconditional return policy myself and I look at it as almost like an advertising or promotion cost. It probably brings in more business than it costs to do it.