Gaffer or duct tape is what I have used to secure the mic cables at the top below the stereo bar for over 2 decades of open concert taping. I don't secure the cables for looks.
Simply put, a hapless patron that grabs your stand and/or cables in the dark by mistake cannot easily cause your mics to be pulled off the stand and hit the floor when a strip of duct tape is used to secure the cables firmly to the mic stand at the top. I also occasional place a second strip at the base of the stand as well.
The velcro ties are neat and everything, but are only effective to keep the cables together and against the stand when no force is applied to the cables. Over the years, I have seen many a pair of mics hit the deck because they were not secured to the stand with tape, only velcro ties. Not something I ever want to experience. YMMV