I haven't had any problem finding the MOVE wands, sometimes a place will be out of stock on the nav controller...
The add-ons for MOVE stuff are way over priced tho....
$17.99 for the sleeves
$20-50 for complete charge station
$14.99 for the EYE camera clip (should be included) in the bundle, but it's not

I guess that's why there's a slightly more mature community out there for PS3, cuz it takes a job & steady income to support ur gaming habit

...also why there might be a lack of mic'd up players on PS3 games... :(