Implementation of a resistive temperature device

Platinum resistive probes are way more user friendly and offer even more reliable readout than those all thermocouples, But thermocouples are cheap to manufacture, less potent to be damaged by some non-skilled dookies and with ease any company can patent his own thermocouple device because so many possible thermocouple variations exist and what we have because of that ?? A cheap piece of metal of sand particle size and cost of them is in proper size also. Not saying about possible types that exist (whole alphabet will running out soon) even identiffication is very hard due to clear V/I measure readout problems due to insanely small voltages generated and even more smaller currents.Ofcoz possibility of cheap production also give very prone market to whole bunch of counterffeit products of poor quality. PT100/PT1000 was best temperture measure system that i hav pleasure working with. Sadly this system vanishes from market slowly