Just ordered DanceDanceRevolution Wii Bundle (I not II) for $12.99 from
Amazon. Usually sells for a little under $30. It comes with the standard
Konami pad which is pretty decent, much better than most of the cheap 3rd
party mats sold separately so if you just need an extra mat it might be a
good idea to pick up. Qualifies for Prime shipping!
Link: http://www.amazon.com/DanceDanceRevolution-Bundle-Nintendo-Wii/
Also, since newest-gen Wii's don't have gamecube controller ports then this
game is essentially incompatible so watch out.