Single income family here, and pinballs are a low priority as far as the budget goes. But the wife realises that pins make me happy, and are a very innocent addiction. So when tax time comes around I manage to convince that a few hundred be tucked away for my next pin. I also find that sticking 10 bucks a week in one of my machines is easy to do, and its not missed.

I have been funding machine purchases by selling pins as well...........but f**k that, I want to grow a collection and am liking the games I own anyway.

Dont smoke, dont spend $$$ giving-up either. Just go cold turkey! I did it, so anyone can.
Dont buy take-away food, it makes you fat, and thats $$$ that can be used for a pin.