Yup! Or to put it another way, just like my mum always says, "If you're going to do something, do it properly." The lil band I play with locally aren't mega world famous, we probably won't win any awards, but one of the compliments that keeps coming up gig after gig is our attention to detail. Cover songs aren't just hashed out, but dynamics and tempo are really paid attention to. Some times we re-harmonise the melodies or change the groove in a tasteful manner. Not showing off but really trying to make a song interesting to listen to and keep people on the dance floor.
People do notice this - probably because there are so many boring bands out there who just chuck out poor cover after poor cover? So, for me, using a different playing technique not only keeps me well practiced, but it's fun and, ya know, it might just demonstrate that this band put every effort in to being 'good at what we do'.
Not meaning as a dig, but Oldbass, if you are that jaded that 'it doesn't matter' anymore, maybe it's time to take a break to refocus on why you do this (I am masking an assumption that you do still go out and play? I don't know your back-story).