I got the speedball kit as well. It is a really good starter kit. Once you've used it for a while you may find you want a better (finer) screen or to apply different approaches but it does have everything you need to get you started.
Mine only cost $25 Canadian in Toronto, so you may be able to find a better deal than $55! Admittedly, that was a few years ago, but I don't see why the price should have more than doubled.