As far a I am concerned, the best scope you can buy is Tektronix. They are available surplus for reasonable cost. I picked up a 465 for $85, only because it had a military part number and had been originally purchased for a Navy contract. And there was nothing wrong with it. It's a portable model, but I bought a Tektronix scope cart for it. Don't use it much, but sure is nice to have a good quality scope when I do.