How much is reasonable for a hobbyist to spend on camera gear?

Photography is expensive, but cheap compared to sports cars, and more durable than single malt scotch.

lol

When I was single I used whatever didn't go into tires and scotch for lenses. Eventually sold all that after getting married. Not the scotch, but it's long gone too.

Now I can politically afford about one lens a year. But now that I have six or so of them I probably need to slow down. Maybe take this year off and go for one more next spring. I'm planning on buying a d600 in 8 to 10 years, when they're under $500. My wife just doesn't see the value in it, and it's not worth the effort (since I have some gear that works for me).