50 games average per year is not unreasonable. go do the math on yao's injuries. big guys get hurt.
75 games is hardly "an iron man" on average, it still allows for missing 9-10 games a year.
and i don't think your second argument is a valid one, because no NBA franchise would take either of them to start a team. (assuming, as the scenario implies that they have access to any of the young big men players in the league)
Perk is not a franchise guy, and Bynum has been far to inconsistent and injury prone to earn the tag, despite clearly being a better two way player than perk.
Neither one is franchise starting material.
I think you're nitpicking a little, and the debate is starting to lose its focus. But thats OK, this is fun.
If an NBA team were forced to start a franchise with Bynum or Perkins, which one would they take? Please answer this question, short and simple.
75 games out of 82 is pretty darn close to perfect. Thats 90+ % ...That is pretty darn close to iron man status. I imagine Pierce plays about 75 games per year, and I think of him as a tough iron man type of player.
Could Bynum end up with a Yao-like injury history? Sure he could. That would be the biggest part of the risk of rolling with Bynum on your team. From what I have seen and read, Bynum should be OK for the rest of his career.