What are some alternatives?
When comparing StepMania and DJ Hero, you can also consider the following products
Frets on Fire - Bonus content.
Rocksmith - Rocksmith builds off of the fundamentals of music games like Rock Band and Guitar Hero by offering fundamental lessons in actually playing guitar.
Osu - Osu is Music, Rhythm, Single and Multiplayer video game developed by Dean Herbert.
SingStar Dance - SingStar Dance is a Dance, Music, Rhythm, Single and Multiplayer video game developed by SCE London Studio and published by Sony Computer Entertainment.
Clone Hero - Clone Hero is a free rhythm game, which can be played with any 5 or 6 button guitar controller...
Rock Band - Rock Band is a Rhythm Music and Single and Multiplayer video game created by Harmonix and published by MTV Games.