So I think this may be what detracts some new people from getting into cast iron. CAST IRON COMBAT! The conversation devolves into opinions, which people guard fiercely. Which I fully understand.
Really there are a lot of different schools of thought out there. The new is right, the old is right, my foot itches....
I don't think anyone is necessarily wrong. I think we are all probably at least some what right. Finding what works for you is most important. Do your research, listen to the people who have opinions. Give it a whack. What is the worst that can happen?
The WORST that can happen is that you have to reseason a pan. Go for it. Seriously, cast iron is almost indestructible. As far as use and cooking, I can't think of a way to actually DAMAGE a cast iron pan/pot/skillet. If it rusts hit it with a wire wheel and clean the rust off, reseason and get back to cooking!
Teflon flakes, breaks down, and gets thrown away. PLEASE buy cast iron. It is not that hard. Can you use soap? Yes! Can you use metal utensils? Yes! Can you season it with MOST oils? Yes!
Try it. Cast iron, and black pans are the way to go. Quit buying and throwing away Teflon every few years.