Bob... I have no idea how many hours on the Cadenza Blue. I am not very good about logging in hours. I still use the Denon quite a bit. I have the 2M Mono on the Denon TT.
Yeah, that's why I asked if indeed you had any idea. ...I guess most people don't bother with that; only the true TT's fanatics.
Am I one? ...Yes, sort of, because I do change cartridges after a certain number of spins.
And I also alternate between several cartridges (at least three) depending of the music and its condition.
I also alternate between at least two turntables (so six cartridges).
Hey, some TTs come with four arms!!!! ...Octopus...sy.
BTW, I must have at least two dozen CD players, if not more. ...All in playable condition, and half in connection (plugged and ready to spin).