If J.R takes the $ from a rebuilding team, it shows you just how much winning means to him, which means we know where he's head is at and we don't need him, it would also mean all that " I want to retire a knick" was a smoke screen to boost the price up for who ever wants his service
He knows the max we can give him, so like cp3, he needs to make a decision so we can focus our attention to other needs