It would be valuable to have decentralized marketplaces where artists can meet customers who are looking for the services/products offered.
The obvious obstacle: why should customers look for decentralized marketplaces when they already have centralized hubs?
There are no simple answers here. If the decentralized marketplaces provide unique, quality products with better product browsing and filtering - more signal and less noise - then this would be a possible edge that could attract traffic.
Bitcoin brings sovereignty to creators, yet we need to convince the larger public to make purchases with bitcoin rather than fiat.