A blockchain marketplace in a ****** industry with products/services of very high prices possible?
You might want to make the censored part clear so we can fully understand your question but creating a new marketplace
[be it a blockchain-powered one or not] with products of significant value isn't going to be easy
[in terms of gaining users].
Online shopping or renting a cab through a marketplace issued token seems reasonable, But what about products or services that cost upwards of thousands of dollars.
Not that reasonable.
Does it make sense to create a new blockchain powered marketplace for such an industry, Since a lot of currently running centralized marketplaces are profitable but cost customers a lot of money. Commissions of such marketplaces can range from 5 to 20 percent.
Not sure about the type of industry you're referring to but there are way too many marketplaces
[regardless of their nature] and most don't have enough traffic
[in the crypto world].