there is the 10 day free trial if you would like to play for free. I said the same thing when first started, it was too expensive, but it is worth it my friend
otherwise no, unless you want to play a private server.
Do dailies each day and sell the gold. When you think about it, a 2 month game card is $30? At $15 a month you would only need to really farm 7.5k if you sold for $2 a k, which is a good price. 7.5k isn't hard at all to make once you hit 80.