Name any decent Wii title that we may have forgotten to buy

[bmmb1]

Muramasa (has some RPG elements, some view it as one while some not)

Metroid Prime Trilogy (!!!)

Silent Hill:Shattered Memories (!!!!!!!)

A Boy and His Blob

Dead Space Extraction

YOU DON'T HAVE NSMBWii????

Going by some of your games:
If you like Pikmin, there's Pikmin New Play Control (Pikmin but wth improved Wiimote control)

If you liked Boom Blox, Boom Blox Bash Party is better (except for not having 4 player). Lots of downloadable content for this one and you can create your own levels (and upload them online)

I see you have Secret Files - so if you like point and clicks, there was Broken Sword Director's Cut, and there was Monkey Island (Wiiware)