???Compromise???

We all know life is about compromise..So I'm curious,what compromises you made when you choose your front end?
 For myself currently looking for my end game front end & where I'm stuck is do I accept bigger size & wayyy more heat for what to me would be the ultimate amp,or do I give up that last bit of everything the above amp gives to downsize & cool operation...
 So what do you feel you gained & lost by your current choice in front end electronics?