Could be because no one here cares about the Wii.
And could we PLEASE stop saying "Well it was 50 dollars then" blah blah blah. Yes, it was $50 THEN. Guess what? In the early 80's, VHS tapes were $80. Things go down in value over time. If any other SNES games were re-released and it cost $50, NO ONE would buy it or even consider buying it. What makes NBA Jam so different? People keep saying "It's a fully featured game." What the heck are these features that are so special? Online play, HD graphics and remix mode. Not special.