Over the years I’ve used a number of different quick release plates, from Manfrotto to Velbon. I’ve found that for something that is relatively small, they really are quite expensive. The Manfrotto 577 Plate costs about $50 at B&H.
So I’ve been using these cheap quick release plates for all of my equipment now for quite some time now.
You can pick them up online from about $11 for a set which is really affordable, and this allows you to use them on each of your cameras and equipment.
For instance, I use them them on my tripods, monopods, shoulder rigs and sliders.
They really are super useful and now, super cheap!