To Bus Pass or not to Bus Pass?

I'm thinking of getting a bus and train pass so I can use mass transit to get to and from the hospital. I've never liked being downtown let alone driving. With all the roads torn up like they are it's just that much worse.

I found out yesterday from the receptionist at the neuroscience building's MRI lab that there is a stop right there by the children's hospital. That means that if I catch the train from here, then transfer to the university line at the central station, it will take about the same amount of time as driving. It will also cost about the same as fuel. The question then becomes one of trading a little convenience for less stress. All things considered Mass transit sounds better all the time. 

For those who might be interested in the numbers. I figure I'll spend about $150 in gas over the next couple of weeks getting to and from the hospital. A July premium pass, which includes both the train and the rest of the mass transit system, is $162. We've been taking between just over and hour, to an hour and a half to get there (which will probably get worse given that I'll be trying to dive in rush hour traffic). I can be to the hospital in just over and hour on mass transit not counting my drive to the station which should only be about 10 minutes or so.