in general, I disagree strongly. There aren't plenty of 10K speakers as good as 35K speakers. 35K speakers will be priced at 35K for good reasons.
There may be exceptions, but in today's global economy, manufacturing costs are very similar/comparable. A speaker of the same size as a cheaper model that cost more will have better materials, more R&D to pay for, higher quality assembly and finish, etc. In short, there are no miracles, miracle finds.