We don't know how much you will play and how much you might spend, but it's a low-cost pastime IMHO. 150 games (at 6 crs) for 10 $ last longer than a movie in the cinema or a dinner date.
incompetentia: Thanks all for the thoughts! I'm trying to stay away from offers because of my work situation right now, but I might end up going that route.
Offers for free credits? Take care, there's broken promises, difficulties and disappointment lurking. And, frequently, you have to spend your good money.