I prefer having something on hand that will circulate without the use of Batteries...

I'm with you there. I almost missed a flight once when I tried to pull up my boarding pass at the gate and the reception there was terrible. The wi-fi wasn't working, so I had to run to the counter and cut in front of everyone so I could get my pass. I made it with only a few minutes to spare. Now, I get that pass printed. Can't beat it.