Apart from Frances Schultz, who trumps the lot (and shares all of the others) there's also travel, cookery, motorcycles, Land Rovers... Oh, and writing, which together with photography, has provided my income for well over a quarter of a century.
I can't imagine anyone who is monomaniacal about photography, but equally, I've never been without at least one camera since 1966, or at least a dozen since some time in the 70s. In the same time I've been without a motorcycle (on and off) for several years (though I've had my current BMW for 25 years) and I've only had Land Rovers for less than a decade in total, in the 80s and in the 21st century.
Cheers,
R.