I agree. Actually, at my age (approaching middle age), that 'retirement' word, doesn't sound right ... it may mean either 'resigned', 'lazy', 'tired' and other negatives... and success can indeed make you 'lazy' and 'fat'... so may be I read more into it. Personally, don't like that 'retirement' word. At-least not till I am actually forced to do :)

So my role models are people like Vishy Anand, who at 41, is still the world chess champion (I believe, hacking is also as energy-needing as playing chess)...