Buying a pet identification tag for your Serbian Tricolour Hound is like buying an insurance policy – you do it with the hopes that you’ll never use it. The “possible cost” of not having a pet ID tag is more expensive than the “real price” of buying the pet tag itself.
The kind of pet ID tag that you buy is crucial, so take 5 minutes or so to think it through. Impulsively purchasing a collar tag just because it’s low cost or pretty often proves to be unwise, in the long term.