There are so many more reasons to not microchip, not just because it is expensive. Just because one person finds risks outweighing benefits, does not mean everybody does. What works for one person will not work for all.
Rosey's tags have always had her name, phone number and our address on them (just the house number and street)
This is true, but those above reasons are the two greatest reasons I have heard amongst friends and family whom don't microchip...so I just listed those two.
Taqroy is correct as well, in my area this is common place. Also wanted to add that I am not saying you're a bad person if you don't microchip, what I am saying is, because microchips are NOT common although they are helpful, I would like to know what you put on your tags.
Renee you have an excellent idea. Rottweilers here get stolen as well that is why I mentioned that microchips are sometimes very useless, they are stolen for breeding purposes as they are high demand dogs and are too expensive to buy through reputable breeders etc. and EASY way to make money is selling Rottweiler puppies from an over bred bitch at a fraction of the price, just because you can do it over and over again.
I think the easier you make it for someone to return your dog the more likely you will get it back...however if someone is dishonest and will not give back your dog, then there is nothing that can be done unless you KNOW where your dog is. 2 of my dogs are not chipped, but will be done in October. I will be honest and say I chipped not because of getting lost or running away reasons but for the sake of having my dogs registered for competition and for the sake of if they get stolen, that is the only way I can solidly prove they are mine
ETA: I just swopped my dog's tags around. Their "permanent" wear collar now has their name/my number tag on and their "walking" collars have their: I am chipped please have me scanned at spca/shelter/etc. on. The reason I changed it around is 1) because I was getting annoyed with the clanking of the two tags 2) because the chances of them getting lose on a walk are much slimmer than when we are home because they are pretty reliable walkers and are ALWAYS on lead 3) because I wanted a tag on their walking collars for "just in case"