Well, the pay seems to vary wildly based on location. I don't make anywhere near $70K/yr. Something else to keep in mind with teaching, the salary is determined by the number of years you have taught and sometimes a stipend for teaching science or math. What I mean is, unlike most jobs where if you work hard you get raises and performance bonuses, a lousy teacher can be making the same wage or more than a really good teacher.
My wife covers me on her company's health and dental insurance and I have life and disability insurance through an outside company because of the cost. Most companies will pay most of your health, dental, disability and life insurance premiums and usually match your contributions to a 401K up to a certain percent. Not true for teachers. In Texas, there is the "Teacher Retirement System" that is basically the same as social security. They withhold 6.5% of your earnings and match that amount. When you retire, you have a pension for the rest of your life. This is the same deal as social security. A private company withholds 6.5% of your earnings, match that amount and send it to the Social Security fund. When you retire, you get monthly payments for the rest of your life (supposedly).
I spend a lot of time grading, especially labs. That's in addition to writing quizzes, writing labs, setting up and taking down labs, doing the lab the night before to make sure everything works, and writing lesson plans. The contract is for 7:30 am to 4:00 pm but most teachers spend a lot longer than that at school and I spend longer than most teachers at school. There are also "events" and "functions" you attend after school and on weekends because you want to or you are expected to or down right have to.
The 10 days off at Christmas is nice but most professionals have off Christmas Eve, Christmas Day, New Years Eve and New Years Day anyway so it's really like only having six additional days off and at least one day is spent decompressing and one spent gearing back up.
Summers off are somewhat of a fallacy. Our last day of school this year is June 3 and Graduation is the 4th (which I have to work -- but I would go anyway). School starts August 22 but we have to be back the week before for "in-service" which isn't spent getting your room or materials ready for the new year so I need to put in another 4-5 days during the summer doing that. Additionally, I have eight days of continuing education and workshops to go to this summer. So that's about seven weeks of the summer off. Again, most professionals get at least two weeks of vacation each year so when you back that out, I'm down to five weeks of "summers off". And some of that time is spent doing the things it would be easy to take half a day off to take care of if you were working in other professions. Things like an annual medical check up and a visit to the dentist. It's much easier to put those things off than prepare for not being at school.
So, if you are thinking about going into teaching because it's an easy gig or having summers off, or for the money, don't do it.
Now for the good news. It is very rewarding. There is nothing like the feeling I get knowing I made a difference in someone's life and that difference will make a difference in many other lives. I'm thrilled when I hear a student say, "Oh, now I get it. I've never thought of it that way." If this motivates you, by all means pursue teaching because that will be what keeps you going and makes you feel successful.
A couple of physician friends of mine say the only thing that got them through the first two years of medical school was knowing they wanted to be a doctor more than anything else in the world.
I hope this was helpful.