There’s a big range in costs because there’s also a wide range of services included. On the lower end, you have developers who have little technical training using templates and builders to create sites. These sites will be cheaper but highly limited in terms of what functionality and optimization. On the higher end, you can work with agencies who will start from scratch and build a completely custom site with all the bells and whistles. This is great for larger companies, but it isn’t always necessary or realistic for smaller ones. Because I have extensive technical training, I can use pre-made CMS templates, but customize them to your needs. This way, we stay within budget, but you still get the functionality and personalization you need.