breaks down like this
Diamonds $900
Ruff Stuff start at $450
Spydertrax start at $399
dynatrac prorock 60s 4200
Where did you see Spydertrax for $399? On their website, they're $499-599 w/o inner C's . Diamonds are $900+ with knuckle balls or inner C's installed. I don't think the Ruffstuff price includes the knuckle balls or Inner C's installed.