If you've been ignoring the Wii U virtual console due to its paltry library, you might want to log in there today. Starting today, Super Metroid only costs $.30 (I did not misplace the decimal point, I promise).
The price drop is part of Nintendo's celebration of the 30th anniversary of the original Famicom, hence why the game costs the weird price of $.30.
Obviously this is for a limited time, so if you haven't added this one to your collection, the time to do so is definitely now.