Hi there!
I’ve done that living in Japan – staying at around 2000 Yen per game (okay,so 2200 would be fine and so on) and I try this in Germany too, staying at 20 Euros. I only break that rule to buy launch day games I desperately want to play, that’s all. And it really saves money; as long as you don’t spend it for other geeky stuff 😉
Cheers