Vanadium 50 said:
You're allowed to do that with opinion, but not facts. You've made some factual assertions (that are contrary to my experience). Please post evidence for them.
PhD scholarships are about $20000 per year tax free (
http://scholarship-positions.com/category/usa-scholarships/usa-phd-scholarships/), which approximately equals the minimal wage considering 50-60 hour load.
Postdoctoral salaries are about $40000 to $50000 per year (
http://postdocs.stanford.edu/handbook/salary.html), which leads to about $12 per hour pre tax considering 60-70 hour loads. That is more than the minimal wage, but not by much. Taking into account that a postdoctoral researcher has to change jobs every year or two, and that relocation expenses are usually not covered, the salary gets even closer to the minimal wage.
As for the insurance and benefits, both PhD students and postdocs usually get no retirement benefits and have to pay themselves for the insurance even when universities offer health plans (http://www.brandeis.edu/ora/postdocs/docs/PDPolicy112011.pdf). There are some exceptions, and some positions may include more benefits than others (
http://www.gdnet.ucla.edu/gss/postdoc/pdhlthbnft.htm), but often academic research it is not considered a real job.
If you want to argue that there are better paid research positions with full benefits (tenure in universities or jobs in industry), you will be correct. My opinion however is that they may be omitted (or at least not considered a likely outcome) when looking at research-related jobs, since the number of these positions is far smaller than the number of PhD researchers or postdoctoral scientists. If you have a different opinion, I do not object.
In my post I have also mentioned that I personally don't know any dull areas in physics, and that there are lots of interesting things to explore. I will not be providing any evidence here, that is just my view. Again, if you have a different opinion, I do not object.