"Cottage Industry" Jets
No doubt by comparison the Wren is a great price for a turbine. I just wonder why there are no low cost older style turbines being produced. I also understand though that it's actually easier to manufacture a 20+lbs thrust turbine than a 12lb turbine.
I think it was the JDE 67 or something like that I saw stuffed in a JHH Mirage. Seems like it would be a cheap to produce moderately performing turbine that would be a great entry level if the cost was right. The tolerances in it aren't anywhere near the new turbines.