A/C Question

Still using the 50 year old hoses on my a/c charged with 134. It works great & doesn’t leak. In my opinion all this stuff about changing o rings and hoses is a bunch of hooey to sell stuff. Did the research on o rings, no difference. If you are a 99% type of guy, it will probably last longer if you change everything. For me, changing stuff that works for something better (in some unquantifiable way), for some unmeasurable improvement doesn’t interest me. Too many other things on my car to spend money on.