I think being a guy that is able to stay around that long is noteworthy by itself, but being around into his mid 40's also hurt his PPG. From his rookie season (1982-83) until he was 35 (1999-00), he was 13th in league scoring over that time frame and averaged .91 PPG. He averaged almost 30 goals a year for his career and is one of the highest scoring LW in history.
He was one of THE guys with Buffalo along with Gilbert Perreault (HHOF). Had the most points of any Sabre during his tenure there and averaged 1.01 PPG.
He was one of THE guys with Toronto along with Doug Gilmore (HHOF). Had the 2nd most points and most goals of any Maple Leaf during his tenure and averaged .98 PPG.
He was in his mid 30's with the Devils and was still one of their top scorers. After that his scoring went down, but he was also in his late 30's and early 40's.
Like I said, not a 1st ballot HHOF, but he deserves to get in eventually. Not a super prolific scorer but he was one of the top guys everywhere he went until age caught up with him.