EDIT: Do NOT buy Avatar or Spongebob because these have now been added on the exclusion list (?), so they won't accept it for a trade to JB Hifi. However, Bully: Scholarship edition or Spyro is still accepted, so use these to trade instead!
Just came back from my local EB Games… been pretty skeptical about this Wii Sports resort thing, didn't think if would be any good, but I tried just the archery and the basketball 3-point shoot out and I was sold. Anyhow, both these games can be had from JB Hifi's trade 2 Wii games and get either Wii Sports resort or Mario Kart for free (as well as some other games, but I don't rate any of them, so.. well.) Now, EB Games are selling Spongebob Squarepants something something and Avatar something something for $39.95 each, one has a 1/2 price off sticker on it, and the other has a $20 dollar sticker off on it. (Oh yeah, both these games are NOT on JB Hifi's exclusion list.)
Here's the plan, stans: I walked into EB Games, tried the Wii Sports Resort. I was like, wow this game's pretty good! So the lady asked if I wanted to get it, and I mentioned that, well… JB Hifi has this thing where if you trade in 2 Wii games, you can get Wii Sports resort for free, can you match this? And she said that she'd just have to call them up to double check, but yeah it should be fine. Okay now at this point, I confided in her that, well.. I was just planning on buying two of your games, namely the two that I mentioned above, and trade those into JB.. would it be possible for you to save me the trip and just do the entire transaction here? And she was happy to do it, went to the back to call JB, came out and said "Too easy." YAY! Now she rings up the two games which came out to $39.91, and then I flash my Edge card, which gives 10% off pre-owned titles. So the final price is $35.90! Now I did this only for Wii Sports resort, but I think it should work fine for Mario Kart, which is also still on the trade 2, get this game free listing.
I think the trick is to ease them into doing the entire transaction for you.. worst case scenario, you buy the two games for $35.90, and if they refuse trade Mario Kart or Wii Resort at EB Games, then just head over to JB Hifi and get your game there.
Make sure that you head over to the JB Hifi website and look for trade-in deals if you don't know what I'm talking about, and have a look at their excluded games which is at the bottom of that same page, and also know that you won't be able to bring in 2 avatars and 2 spongebobs to get both in one go, you'll have to go on separate occassions as you can't trade in 2 of the same game.
I like your style. +ve for ingenuity.