some rare resources are of good quality and very useful as well as patchwork as curiosities.
http://take.ms/Dmes3
http://take.ms/mbVaI
But some are too poor quality to be useful.
For example, I examined at least 15 piles of guano did not find the quality of more than 35 avg. 10 nearest trees less than 20. 20 pools of clay no better 35. The sources of spring water 40-50 examined the water is not more than 45 avg. given spawn rtg 200ml a day they are no more than a means to obtain 500 exp.
let us increase the quality of these resources to at least above average for the planet. With spawn an hour on a teaspoon, they still will not have a significant effect on the economy