I understand the making a living stuff, and it's not that big a deal if the musicians are doing original stuff aside.

It's one advantage of not being a pro, I guess. Playing the same songs over and over, can be a very tedious affair, and causes as many drug problems in the business as anything else, I speculate..

One of the reasons cover and tribute bands don't change arrangements too much (besides the almighty "don't fix it, if it ain't broke", is that they are not allowed to, I think. Sure, you can play any song you'd want to, but you can't do anything you'd want with it.

A second approach to being in business, is to give the public what never knew they'd want.. :-)