MDb news since 1996.
According to a news report at 1up.com, production and shipping for the Metroid Prime Trilogy have ceased. With poor sales probably to blame for this, the three-game compilation may soon become somewhat of a rarity to game collectors.
If you intend to own the Trilogy, we recommend you jump on it pretty soon before your window of opportunity closes. I'd advise not waiting to pick up a used copy, because the prices may skyrocket once it's officially gone from retail shelves.
As of this writing, you can snag copies for $45 and up from Amazon.com resellers.
If you own a Wii and enjoyed the Prime series, then you don't want to miss out on this small window of opportunity!
-Jesse D