Amplifiers weight


What does amplifiers weight has to do with performance?
im trying to decide between this 3 amps
parasound JC5 73 pounds, Anthem STR 60 pounds Michi S5 by Rotel 132 pounds 
I can get them around the same price 
my speakers is modified klipsch KLF 30
preamp is Michi P5 and a pair of SVS SB16 ultra Sony Hap Z1 and Cambridge Azur 851N
i really like the looks of STR amp 
128x128lordrootman
Looking from a prospective I think a manufacturer who will implement both correctly will win at the end of the day 
Lord...more weight not necessarily better for sound, reliability etc. Weight only comes into play for me if I have to move the thing around.
@millercarbon no one pay full MRSP 
you can get discount 15-30% off MRSP or 30-50% off on open box demo or used market 
I was able to get 25% discount on  my current Parasound A21+ and P6 new  

due to my current situation I’m not interested in tube amp or any integrated thanks though 
I've got 50 lbs. of 12 channels that allow me to do Whatever I wish.*S*

Y'all can keep your 2 chan backbusters....;)