If marketed properly and avoiding botching its launch (*cough* Sony *cough*) it could end up as 2nd ever of its series, otherwise 4th (2nd and 3rd are very close, so surpassing the 3rd and stopping between it and the 2nd has smaller probabilities than stopping beyond or below both). 1st is a not impossible, but remote possibility, it depends on how long and good selling PS3 life will be. Obviously even getting 4th place will take a long time and require long legs, not to mention 3rd, 2nd or 1st.