Thank you for the recommendation, I will surely check that one out! And you got a nice score, congratz!

A more expensive keyboard does not make you type better in my opinion, but it does improve the comfort of typing for a longer time. It also depends on what you are used to.

Another one that is fun is typeracer, it let's you race against others by finishing a typing test as fast as possible. These are fragments from literature that you are typing and thus adds some difficulty as well compared to 10-fast-fingers, as you need to keep in mind punctuation :-)