Ditko got a regular penciling job from Marvel in 1988 when he was 61 and I believe got some freelance work from Marvel and DC well into the 90s. Roy Thomas got hired by Marvel to do comic adaptations of classic novels in the 2000s when Roy was over 60. I don't think either happened because the fans were demanding it.
But it's usually true that when you work for someone else, big corporation or otherwise, you can get a steady paycheck but be disposed of when it suits your boss. When you work for yourself, you're in control of your own destiny but might not ever make a living at it.
Edited by MBunge (03/06/13 12:20 PM)