I don't know what tools are included with the Spyder, as I don't use those tools as my main tools. I haven't had the chance to get around to opening that bag to see what is in there. However, most people will not generally have a 36mm socket, or the T40 & T45 Torx bits. I had the T40 and T45, but didn't have the 36mm socket. I didn't mind having to go out and purchase this, as it gives me an excuse to buy a tool I didn't have
I can justify the cost of any tool because not only am I saving a lot of money by doing my own service, but doing my own service helps me to learn more about the RT that I would not have known if I had the dealership perform the work, and it eliminates any fear of taking the plastic off (this is my third time for taking the plastic off).