Make sure you are comparing apples...not all balcony seats are the same. Center sections are more expensive than corners, which are more expensive than ends. Lower rows cost more than higher rows.
The only add-on to the face value is the one-time processing fee, about $20 per account(not per seat).
Last year, they offered me a nice discount on the full season with early renewal, because it was pre-trade and he prospects weren't so good. This year, no discount, and the prices went up slightly ($3 per seat per game). I'm ok with that, based on how much they improved the product.
Don't forget the season ticket package includes 2 pre-season games, a couple of special events, a few trinkets, and usually a gift card to a local restaurant.