Welcome. Its good to have another Nebraska collector here. One thing that I have learned in 15 years of doing this is you never know what you may find. Good deals, bad deals, excellent condition games, water damage, multiples of one game in the same place, freebies, roadside games. I have had a lot of games come and go. Probably the best feeling of all is owning and playing games that you played as a kid. Case in point, I am really enjoying the Asteroids that I recently got.
At any rate, welcome to the community. Feel free to post tech or other game questions as needed. There is a great wealth of knowledge here and other places. Some of the guys here produce accessories and/or replacement parts. Others have websites with tech info and pics of their awesome game rooms. Pretty much anything you need to know, you can find here.