Correct decision or not?

Ok,so today i bought the bus concession for $52,and not the mrt concession,after serious considerations. Firstly,i come to a conclusion that in the morning,there is plenty more year ones heading to RP too,so the train is surely packed even before it reaches braddell,or have no seats left. Next,i also think that most of the time i'm going home around the evening (5 - 6pm),so the trains will be full of students and office workers going town/home. No point trying to squeeze onto the trains while the bus has seats + less walking.
Though it's not exactly value for money buying at this time of the semester,but i think it's ok la. Why i say this? Next month is holidays liao,and the bus concession ends on 8th of June.