You can buy 1Gsamples/s oscilloscopes now for a few hundred euros. But there are also entry-level scopes available in the range of 800-1000€. Does it make sense to invest in the more expensive devices? Check out this comparison of two Rigol devices:
There is another interesting thing about the Rigol DS2000 series featured in this video: there is a key generator out that allows you to use the features of the expensive devices even with the base device. All features are enabled and disabled just by software. Is it legal? We don’t know? But a more interesting question is: What will Rigol do about it? My guess is, that Rigol is aware of the issue and is happy about it. It’s great marketing: Sell the same product at different price points depending on the willingness to pay.