I'm new to chickens and finally ready to buy my first chicks. I didn't want many, so the online route is a bit expensive and I'd prefer not to subject my new babies to shipping since I wouldn't be able to pick them up when they first arrived at the post office. I have found a number of local farmers that are selling their chicks, however, none of them are vaccinated for Merek's disease. Should this be a deal breaker?