With 70$/hr you're talking about roughly 140k/yr if you're a full time employee...

If that's your current situation, then the only alternative would be consulting.

Yes, you could make more per hour (significantly more, actually), but you'll also have to consider that you won't get paid 40hrs/wk through the whole year and you'll also have to cover expences you currently might not have.

I'd say, the hourly rate isn't a good figure for comparison...