Actually I do not know any body that makes 150K. But there are more and more operators out there that make good $ with an R44 and don't have the cost associated with the turbines. It's pretty simple R44= $300K @ $400?hr: 206=900K @ 600/hr. who's going to make more with less?
Lu: SN #24 in R22 POH adresses low RPM and subsequent fuselage contacts.