There are so many digital storage oscilloscope for sale in the market. But, who can cater a deeper memory? If you're at school performing tests, at a lab, or at a testing table, you really should have a good oscilloscope.
After you analyze a sample, you will then store it in a memory for future purposes. Then, the more samples you store, the higher the sample rate. But what if your device only has a low memory depth? You won't achieve your goal. If I were you, purchase for yourselves or for your company or school Rigol's large memory depth scopes. These scopes are: RIGOL DS4000 and DS6000