Irons are like husbands---you have to find the one that suits you. Some people like teflon coating, others don't. Some like a heavy iron, I don't. At my house, cheap, light, with teflon coating and steam.
One of the LQS's that I take classes at has those really expensive irons with the feet that pop out and raise it up. Unfortunately sometimes those feet stick---out when you're trying to press, in when you stop. For the price difference I prefer the cheap with that little mat that you can get at Hancocks to set the iron on flat. The reason to keep it flat is so that the steam is always ready--if you like to press with steam.