Isn't that the issue? That the individual data point isn't worth the 10% markup - but the accumulated ( across multiple sources ) picture that's the problem. T

Isn't that the issue? That the individual data point isn't worth the 10% markup - but the accumulated ( across multiple sources ) picture that's the problem. That's why I'm proposing regulating joining up of the dots, rather than collection of each of the dots ( one is inevitable, the other is not ).