Today's Aerosol's are crap

I am not having nozzle clog problems. I have changed them out and that doesn't help. There is something wrong with the propellant, the bag inside of the can, or the valve that the nozzle plugs into. Very frustrating, especially since the prices of aerosol products seem to be higher as well.
100% yes. I have had a ton of failed cans lately. not nozzle clog, or even low psi, but something with the mech down in the neck. full cans dead while new, or nearly new.