I have a few things to add.
I too agree that loading the moon cips is not hard. I simply lay the cartridges down on a firm surface and push
straight down. Its important to go straight because you don't want to bend the clip. Interestingly, the exposed wooden ends of a sofa's armrest are not recommended, as the cartridge rims will put dings in them. As a young newlywed many years ago, I caught holy hell for that.
I made my own demooner out of a short length of PVC pipe. I essentially copied the brownells tube-type one. I just filed a step/ridge setup into the end and cobbed on a simply wooden handle. Here are a few pics
Just give it a twist and the casing comes straight out.
I also eventually acquired a spoon type tool, but really never use it. I pack it along in my bullseye box because it takes up so little space and will do the job. Unless you are loading and unloading moon clips by the hundreds I don't see the need for the more expensive tools.
Also, I very recently bought a pack of the plastic RIMZ moonclips just to try. I think they work very well for casual shooting, and they are a breeze to use. I found them to be just a bit thick, however, and they occasionally drag in the frame. Nothing at all objectionable for casual shooting, but I think if I was doing some serious shooting like a pin shoot or an IPSC match(which I never do anymore anyway) I would stick to the steel clips.