The answer to 'how much does switch cost' is that the cost of a light switch can vary widely depending on factors like the type of switch, brand, materials, and where you purchase it. Generally, basic toggle or rocker light switches range from $2 to $20 each. More advanced smart switches or specialty switches can cost $30 to $100 or more.
The cost is influenced by the switch's features, quality, and whether it's a DIY installation or requires professional electrical work. It's important to get local quotes to understand the specific costs in your area.