just my 2 cents.....sewing/ quilting can become a (sedentary) activity---sometimes the only exercise we get is getting up to walk to the ironing board.
i have a couple small irons- i use mainly (next to my machine) for applique & paper piecing...and i always (regret it later) because i find i have spent hours sitting there-working and am stiff & sore...so, tempting as it (seems) i find i am better off getting up for those pressing moments