I think this game will be a rare thing - bomb on PS3/360, and do well on Wii. The Wii's was the only version to chart in the UK, and I think legs will take it even higher than last week.
I bought my copy yesterday, currently waiting for it to arrive from Amazon (£25, bargain).
Edit: Also, i've seen Wii version adverts for this game on TV (here in the UK) 3 times now, but no advertising for the HD versions. I'm sure Ninty bankrolls some third party ads.