The DeLeon is a excellent machine. Don't let a strip of Velcro be the deciding factor for go or no go. You can buy a strip of Velcro and attach it yourself on the arm cuff. It wouldn't be rocket science.
Thanks all. Having a strap allows me to let go of the detector if I need to use my swinging hand for something, like taking a two handed scoop, and I seem to do that alot. Don't want to have to pick up and put the thing down all the time.