I assume these don't sell out since there aren't space constraints, but maybe they only make a limited number of medals? Does anyone know? I'd prefer to see the medals before signing up. I was thinking that doing the series would be fun for my family, but the medals are a big part. I regularly do 4-mile walks during my lunch break at work, so I don't need this as an incentive to run or walk a 5k. It would be about doing the series as a family and getting some cool bling. We are also cat people, so the dog accessories aren't really an enticement.