How long have you been riding? Or is this the first time?
If its the first time.. go once or twice to make SURE you really wanna snowboard and that it IS for you (i cant think of any reason why you wouldn't love it)..
For me.. I get a season pass to Wisp (Maryland), i'm only about 40 minutes from there and I go every Saturday and Sunday.
I'd say get the pass! It'll give you a good reason to wake up and go shred, for free
(well, after you purchase the pass..)