Pet stores are a great place to find a guinea pig as a new pet. Prices can vary depending on the type and age of the guinea pig, but typically range from $20 to $50. It is important to research the different breeds and options available to find the best fit for your lifestyle. Many pet stores also offer supplies such as cages, food, bedding, and toys. When it comes to selecting a guinea pig, it is important to consider the cost of their supplies, as well as the cost of the guinea pig itself. With a little research and the right pet store, you can find a great new companion at a reasonable price.