So let's do a little math. You're driving 230 miles total. I'm going to estimate you'll get an average of 20 miles per gallon on that drive which means you'll use 11.5 gallons of gas. At a national average of some $3.38/gallon, you're looking at $38.87 or so for gas, plus $16 for the ticket, plus (probably) another $8-10 for parking, plus something to eat (call it $7). So you're looking at $70 plus or minus, plus the money lost from leaving work early. Which is a lot. On the other hand, The Mountain Goats are a great live band and if you have money to spend (aka you're not living paycheck to paycheck with really nothing at all left over at the end of every two weeks or month or whatever), for me spending it on a killer concert is one of the best ways to do it. In the long run, that $70 isn't going to change your life one way or another whereas a really amazing concert is something you can look back on fondly for years to come. All of which is to say, I think you should go.