Wow, well first off, welcome to the hobby! I'm always excited to see new people enter the fray of pinball ownership. That STTNG is a fantastic deal if it is truly in good working order. You said that your dad was in to pinball. If he owns/works on pins, make sure you both look at it to make sure that everything is in working order and that there are no issues that are difficult to fix (planking on the playfield etc.). Good luck with your purchase. You have much more fortitude than I did when I was 13. I never would have been able to save that much without spending it!