Data MarketPlace, Is It A Good Idea?

I think the current iteration of the data marketplace sucks. You have to know a specific place, where you want to get your data from. The variety of data sets available in a specific platform also varies so much. Also, it is incredibly difficult for a non-technical person to get their hands on the data. If a business user wants to access data they have to jump through a lot of hoops to download the data. Is it a good idea to start a marketplace that solves all these problems? Did anyone try to do this before?