When purchasing a Corgi as a pet, concerned breeders will strongly suggest that it be neutered. The health of your Corgi as a neutered animal is greatly enhanced. Bladder and prostate problems and some of the more common cancers can be almost totally eliminated in the older dog by simple neutering procedures done when they are young. For your Corgi's sake, all dogs not actively used in a breeding program should be neutered.
If you have plans for purchasing a Corgi for showing and breeding you should be aware that breeders recommend several involved and expensive tests be done prior to any breeding considerations. The Corgi breed currently seems to be having problems with Cesarean sections and uterine inertia that lead to increased costs of rearing a litter. This is in addition to the cost of the dam's pre-breeding checkup by your vet, the stud service fee, possible airline shipping charges and increased vitamins, protein and food for the momma-to-be.
Working with a competent and concerned breeder should give you added resources. You can have their help in evaluating your Corgi physically and mentally. They can offer guidance as to the selection of a suitable mate, reassure during the pregnancy, offer advice and may directly help during the socialization of the puppies. Once the pups are at least 8 weeks old and have received preliminary inoculations, they may be able to help you in finding suitable homes for your puppies. There is a lot more to breeding that just putting a male and female together. The Corgi puppy you love and cherish was not just evolved, it was the result of a lot of clear thinking, hard work and expense.