My small guild buys irons for everybody to use on sewing days. We have gone thru a whole bunch of irons in the cheap range and then moved up to the mid price range. So far the one everybody has liked the best is the Black and Decker Digital Advantage. I think it's full retail price is around $70 but you can get it a whole lot cheaper on Amazon.
Teflon coated irons don't get as hot as stainless steel irons to prevent the teflon from off gassing and killing birds.