So I'm thinking about grabbing this scope locally. I got em to $175. It comes with 2 probes, was calibrated 2 years ago and passes all self tests. Price is right from what I've researched. They seem to go from $200-$300 + $100 shipping. Any reasons why anyone would think I shouldn't buy this scope? I'm new to scopes I've never really needed to do the heavy hardware "lifting".