The price to fully develop a Symfony project can differ widely relying on a list of factors, involving the complexity of the product, the size of the elaboration team, the skills and experience of the team, and the position of the creation team. Generally, hourly rates for Symfony development can vary from $50 to $200 per hour, with an average rate around $100 per hour. However, in some cities or countries, the price may be higher or lower. Additionally, a full-time salaried employee will typically have a different cost structure than a contractor who is working hourly. It's difficult to give an accurate estimation of the price without knowing the specifics of the product, but you can expect a simple product to price in the range of a few thousand dollars, while a complex project with many tools could cost tens of thousands of dollars. It's also important to note that elaboration price isn't the only price involved in a product, also there're prices such as hosting, support, and updates that should be taken into account. It's recommended to set a detailed scope of work, that includes the functionality, tools, design, and testing, then to get quotes from multiple development teams to compare the prices and select the best option that fits your budget and your expectations.