[92snowmachine]

I have both the snap-on gauge and a cheap $20 one from harbor freight. I typically use the snap-on at work were I have to be accurate and the cheapo one at home were accuracy is not as key. The snap-on looks and feels better and even is slightly easier to use (better rubber that bends easier) but always gives me the same exact readings that my cheapo gauge does. If it's not going to make you money or your not going to use it very often I would recommend the cheapo gauge any day, had it for over 3 years and it still works fine.