Traditional tech - Cast iron pans vs. carbon steel in your kitchen

Last year, I had a lot of fun doing this post about Cooking tech : the kind of vessels that it is safe to use in your kitchen. I have replaced a lot of my non-stick vessels with anodised aluminium, and some with cast iron. But now a new factor has entered the picture - induction cooking. In the last year, the market has been flooded with induction stoves, really cheap (some are available at price-offs for under Rs.2000). They are popular with consumers for a variety of reasons - a back up for when you run out of gas, a safe cooking method where naked flame is not allowed, and a light and portable gadget to carry on trips. However, induction stoves work only with compatible cookware - and when I bought an induction top, I realised that manufacturers are making a killing on this front. Non-stick pans with induction base are priced at least at a 30% premium over regular ones, and it's extremely hard to find anodised induction cookware. I imagine that most people will not want