Now is the time to start collecting Wii games!

[SecondWar]

Obviously it going to vary on the game. Some of the big hitters like Super Mario Galaxy, Skyward Sword or DKCR may start to see a boost as the Wii fades into history.
It’s the less common titles that become collectors items that will see the big boost, particularly some of the ones released much later in the Wii’s life-cycle. I’d expect Just Dance 2020 will have a hefty price tag in 5 to 10 years. Shakedown Hawaii and Retro City Rampage, the last 2 games ever released on the Wii and both limited to 3000 copies, will also likely get pretty expensive.