Earlier quoted context omitted.
150,000/yr (~75/hr) is low.
How is that low? once again, I must whip out some statistics: http://swz.salary.com/salarywizard/layouthtmls/swzl_compresu... The average full-time web developer salary is 70k. I'm not saying I don't want to make $150k+, but I just can't find any way to substantiate the claim that I'm worth that much.
Everyone should listen to tptacek, he is absolutely right. It is the value you can deliver, not what your actual cost is. A good web site can be literally worth millions. Deliver the final product, end to end, and you can charge a good proportion of that. 70k is "sitting down money" and most good web devs should not accept anything like that.