As with most tools, I'd say how much you are willing to spend on a tool depends on how often you will use it and what you will use it for. I just bought the Woodpeckers sled. I've been told that, because there isn't something included which holds down the backing board, the backer sometimes rises up when routing. I have not yet experienced that. I would suspect that whether the backer rises depends on what type of bit you are using. There are remedies for that though, like installing a small clamp in the track. Other than that, I can't seen any real flaws that interfere with my use of the WP sled. It is solid, easy to setup, and works as described. I would guess the Infinity sled is heavier duty and also a great sled, but a sled is a sled and, if you really want to, I'm sure you could make your own that would work well also. I love buying new, great tools so how much you spend, is up to you. I have seen very positive reviews of both the Woodpeckers and Infinity sleds.