Definitely get the second; RB1 is much less functional than RB2 on the Wii.
DLC is typically 2 dollars per song, although some are 1 dollar.
I'm not sure about RB1 songs though. Since the Wii's DLC isn't yet working, you probably can't import yet, but in any case, you'll be getting a better deal from RB2.
Once/If songs from RB1 are able to be imported to RB2, it would cost 5 dollars plus a rental of RB1.
If you're worried about what songs are available, go here to see: http://en.wikipedia.org/wiki/List_of_son...ock_Band_2
http://en.wikipedia.org/wiki/List_of_songs_in_Rock_Band
http://en.wikipedia.org/wiki/List_of_dow...and_series
DLC is typically 2 dollars per song, although some are 1 dollar.
I'm not sure about RB1 songs though. Since the Wii's DLC isn't yet working, you probably can't import yet, but in any case, you'll be getting a better deal from RB2.
Once/If songs from RB1 are able to be imported to RB2, it would cost 5 dollars plus a rental of RB1.
If you're worried about what songs are available, go here to see: http://en.wikipedia.org/wiki/List_of_son...ock_Band_2
http://en.wikipedia.org/wiki/List_of_songs_in_Rock_Band
http://en.wikipedia.org/wiki/List_of_dow...and_series