I may be missing something concerning irons, but I buy what ever cheap little steam iron I can find. The last one I purchased at Walgreen's when I went to pick up a Rx. I think I paid $13 for it. I only replaced the previous one because the bottom had gotten scratched (after using for 7 yrs.), but since I probably paid less than $20 for it, I considered it a throwaway.
I use mine with steam for ironing cloths, and dry with spray sizing for pressing fabric after washing. I use dry for seams when piecing. Since I'm kind of new to quilting, if there something I should know about the need for these expensive irons?