My 12-year-old son is a well-rounded sixth grader. He loves his Legos, is passionate about playing soccer and, like many kids his age, has been lured into the world of video games. We moms may never get it, but these boys (husbands included) are so obsessed about their video games, it gives the word "crazy" a whole new meaning!

I wasn't shocked to see video games listed on my son's Christmas wishlist. What did shock me was the price of each game. These games are as high as$60. Wow! As I looked at the stack of games near his PlayStation 3, I cringed. I thought of the money we spent on them and how they are now obsolete as new versions were just released. I’ve always known it's a good idea to trade in videos or to buy pre-owned, so I took it upon myself to find the best place for trading in and buying video games. It’s very possible that Walmart may be the best place. Read on to find out how to save the most when you buy video games at Walmart!

1. Walmart sells pre-owned, certified video games at low prices

Earlier this year, I discovered Walmart started a video game trade-in program. They have since expanded this program and will now be selling certified, pre-owned video games in more than 1,700 stores and online. To my surprise, the games being sold include many popular and current titles. Recognize games like these? Minecraft, Super Mario 3D World, Mario Kart, Pokemon X, Pokemon Y, Lego Marvel Super Heroes and the Lego Movie Video game. They're available in most systems like Nintendo DS, 3DS, Wii, WiiU, PlayStation 3, PlayStation 4 and PSVita. My son really wants the Minecraft game for Xbox 360. New, this sells for $17.54. Pre-owned, Minecraft Xbox 360 is only $14.31!

2. What is Walmart's video game trade-in opportunity?

There are an estimated billion video games that sit unused in American homes. (I think about half of those are at my house!) Now those games can be turned in for Walmart eGift cards. Walmart accepts trade-ins and gives credit on used video games. This is how we smart, money-saving moms turn those unused video games into savings.

If you visit the Walmart video game trade-in page, there’s a complete listing of the games they accept along with their trade-in value. My son really wants to sell his Super Mario Bros. Wii game. We checked the trade-in value of it at Walmart and found that as long as it’s in working condition and in its original case, we could get $5.55 for it. That credit can then be used to purchase Minecraft, which would drop the price to only $11.99 when we buy it pre-owned at Walmart. Score!

3. Walmart's “Call of Duty” festivities: November 3rd and 4th

My husband has been anticipating the release of "Call of Duty: Advanced Warfare" (Note: probably not a good game for kids). He was excited to hear Walmart is giving gamers the chance to buy this a day earlier than its national release. You know how guys think: if you're the first to get it, you're like a national legend! For Walmart shoppers, "Call of Duty" will be available for purchase starting at 12:01 a.m. local time on Monday, November 3rd. At certain Walmart locations, gamers can even participate in early-play tournaments and win giveaways.

4. Opportunities to double trade-in value

This is noteworthy! During the two-day event, Walmart is increasing its trade-in value for pre-owned games. Games will be worth an additional 50% credit for customers trading in any used game when they purchase "Call of Duty: Advanced Warfare." If you're buying a PlayStation4, the video trade-in value will double. That means that $5.55 we just got for trading in Super Mario Bros. doubles to $11.10. The cost for the Minecraft game could be as low as $0.90!

5. More ways to save

With the holidays here and many gifts to be bought, I thought I'd share a couple of quick money-saving tips for video game purchases at Walmart this season.

Savings Catcher

Have you heard of Walmart's new Savings Catcher program? Enter your receipt, and Savings Catcher will automatically compare prices of the item you purchased to prices at top stores in your area. If a lower price is found, Walmart will issue you an eGift card for the difference.

Price matching

Price matching has been a very popular way for people to save at Walmart. If you find a lower price on an item, Walmart will match that price, and you pay the lowest cost. For example, if Minecraft for Xbox 360 is only $15.99 at Target through the holidays, and Walmart's price is still $17.54, you only pay $15.99 when you price match!

5 Ways to Save Big on Video Games at Walmart