Us vs them
Some of the stuff I see on this thread has all the makes of a sort of racism, gliders vs powered and I think it’s time to remember that it’s all GA aircraft that are subject to the collision risk.
The suggestion that £2172 is expensive puts a very low value on your life but the joke is the system can be had for a lot less than that if you have a portable FLARM, The £2K+ is for the version that hooks up to the high end Garmin kit.
The reason that gliders have FLARM and don’t have pilotaware is the gliding community fitted FLARM long before the powerd Aircraft started thinking about this kit and have a take up rate of above 95%. Do you think all those gilders are going to change because you have got the wrong cheap system ?